Theorem btwnconn1lem8 32201

Description: Lemma for btwnconn1 32208. Now, we introduce the last three points used in the construction: P, Q, and R will turn out to be equal further down, and will provide us with the key to the final statement. We begin by establishing congruence of R P and E d. (Contributed by Scott Fenton, 8-Oct-2013.)

Assertion

Ref

Expression

btwnconn1lem8

|- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. R , P >.Cgr <. E , d >. )

Proof of Theorem btwnconn1lem8

Step	Hyp	Ref	Expression
1		simpr2l 1120	. . . 4 |- ( ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) -> C Btwn <. d , R >. )
2	1	ad2antll 765	. . 3 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> C Btwn <. d , R >. )
3		simpr1r 1119	. . . . . 6 |- ( ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) -> <. C , P >.Cgr <. C , d >. )
4	3	ad2antll 765	. . . . 5 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. C , P >.Cgr <. C , d >. )
5		simp11 1091	. . . . . . . 8 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> N e. NN )
6		simp2l1 1160	. . . . . . . 8 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> C e. ( EE ` N ) )
7		simp31 1097	. . . . . . . 8 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> P e. ( EE ` N ) )
8		simp2r1 1163	. . . . . . . 8 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> d e. ( EE ` N ) )
9		cgrcomlr 32105	. . . . . . . 8 |- ( ( N e. NN /\ ( C e. ( EE ` N ) /\ P e. ( EE ` N ) ) /\ ( C e. ( EE ` N ) /\ d e. ( EE ` N ) ) ) -> ( <. C , P >.Cgr <. C , d >. <-> <. P , C >.Cgr <. d , C >. ) )
10	5, 6, 7, 6, 8, 9	syl122anc 1335	. . . . . . 7 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( <. C , P >.Cgr <. C , d >. <-> <. P , C >.Cgr <. d , C >. ) )
11		cgrcom 32097	. . . . . . . 8 |- ( ( N e. NN /\ ( P e. ( EE ` N ) /\ C e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ C e. ( EE ` N ) ) ) -> ( <. P , C >.Cgr <. d , C >. <-> <. d , C >.Cgr <. P , C >. ) )
12	5, 7, 6, 8, 6, 11	syl122anc 1335	. . . . . . 7 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( <. P , C >.Cgr <. d , C >. <-> <. d , C >.Cgr <. P , C >. ) )
13	10, 12	bitrd 268	. . . . . 6 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( <. C , P >.Cgr <. C , d >. <-> <. d , C >.Cgr <. P , C >. ) )
14	13	adantr 481	. . . . 5 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> ( <. C , P >.Cgr <. C , d >. <-> <. d , C >.Cgr <. P , C >. ) )
15	4, 14	mpbid 222	. . . 4 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. d , C >.Cgr <. P , C >. )
16		simp33 1099	. . . . 5 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> R e. ( EE ` N ) )
17		simp2r3 1165	. . . . 5 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> E e. ( EE ` N ) )
18		simp2l3 1162	. . . . . . 7 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> c e. ( EE ` N ) )
19		simpr1l 1118	. . . . . . . 8 |- ( ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) -> C Btwn <. c , P >. )
20	19	ad2antll 765	. . . . . . 7 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> C Btwn <. c , P >. )
21	5, 6, 18, 7, 20	btwncomand 32122	. . . . . 6 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> C Btwn <. P , c >. )
22		simprll 802	. . . . . . 7 |- ( ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) -> E Btwn <. C , c >. )
23	22	adantl 482	. . . . . 6 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> E Btwn <. C , c >. )
24		btwnintr 32126	. . . . . . . 8 |- ( ( N e. NN /\ ( P e. ( EE ` N ) /\ C e. ( EE ` N ) ) /\ ( E e. ( EE ` N ) /\ c e. ( EE ` N ) ) ) -> ( ( C Btwn <. P , c >. /\ E Btwn <. C , c >. ) -> C Btwn <. P , E >. ) )
25	5, 7, 6, 17, 18, 24	syl122anc 1335	. . . . . . 7 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( ( C Btwn <. P , c >. /\ E Btwn <. C , c >. ) -> C Btwn <. P , E >. ) )
26	25	adantr 481	. . . . . 6 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> ( ( C Btwn <. P , c >. /\ E Btwn <. C , c >. ) -> C Btwn <. P , E >. ) )
27	21, 23, 26	mp2and 715	. . . . 5 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> C Btwn <. P , E >. )
28		simpr2r 1121	. . . . . 6 |- ( ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) -> <. C , R >.Cgr <. C , E >. )
29	28	ad2antll 765	. . . . 5 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. C , R >.Cgr <. C , E >. )
30	5, 8, 6, 16, 7, 6, 17, 2, 27, 15, 29	cgrextendand 32116	. . . 4 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. d , R >.Cgr <. P , E >. )
31		brcgr3 32153	. . . . . 6 |- ( ( N e. NN /\ ( d e. ( EE ` N ) /\ C e. ( EE ` N ) /\ R e. ( EE ` N ) ) /\ ( P e. ( EE ` N ) /\ C e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) -> ( <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. <-> ( <. d , C >.Cgr <. P , C >. /\ <. d , R >.Cgr <. P , E >. /\ <. C , R >.Cgr <. C , E >. ) ) )
32	5, 8, 6, 16, 7, 6, 17, 31	syl133anc 1349	. . . . 5 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. <-> ( <. d , C >.Cgr <. P , C >. /\ <. d , R >.Cgr <. P , E >. /\ <. C , R >.Cgr <. C , E >. ) ) )
33	32	adantr 481	. . . 4 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> ( <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. <-> ( <. d , C >.Cgr <. P , C >. /\ <. d , R >.Cgr <. P , E >. /\ <. C , R >.Cgr <. C , E >. ) ) )
34	15, 30, 29, 33	mpbir3and 1245	. . 3 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. )
35	5, 8, 7	cgrrflx2d 32091	. . . . 5 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> <. d , P >.Cgr <. P , d >. )
36	35	adantr 481	. . . 4 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. d , P >.Cgr <. P , d >. )
37	36, 4	jca 554	. . 3 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> ( <. d , P >.Cgr <. P , d >. /\ <. C , P >.Cgr <. C , d >. ) )
38	2, 34, 37	3jca 1242	. 2 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> ( C Btwn <. d , R >. /\ <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. /\ ( <. d , P >.Cgr <. P , d >. /\ <. C , P >.Cgr <. C , d >. ) ) )
39		simp1 1061	. . . . 5 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) )
40		simp2l 1087	. . . . 5 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) )
41		simp2r 1088	. . . . 5 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) )
42	39, 40, 41	3jca 1242	. . . 4 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) )
43		simpl 473	. . . . 5 |- ( ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) -> ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) )
44		simprl 794	. . . . 5 |- ( ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) -> ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) )
45	43, 44	jca 554	. . . 4 |- ( ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) -> ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) ) )
46		btwnconn1lem7 32200	. . . 4 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) ) ) -> C =/= d )
47	42, 45, 46	syl2an 494	. . 3 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> C =/= d )
48	47	necomd 2849	. 2 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> d =/= C )
49		brofs2 32184	. . . . . 6 |- ( ( ( N e. NN /\ d e. ( EE ` N ) /\ C e. ( EE ` N ) ) /\ ( R e. ( EE ` N ) /\ P e. ( EE ` N ) /\ P e. ( EE ` N ) ) /\ ( C e. ( EE ` N ) /\ E e. ( EE ` N ) /\ d e. ( EE ` N ) ) ) -> ( <. <. d , C >. , <. R , P >. >. OuterFiveSeg <. <. P , C >. , <. E , d >. >. <-> ( C Btwn <. d , R >. /\ <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. /\ ( <. d , P >.Cgr <. P , d >. /\ <. C , P >.Cgr <. C , d >. ) ) ) )
50	49	anbi1d 741	. . . . 5 |- ( ( ( N e. NN /\ d e. ( EE ` N ) /\ C e. ( EE ` N ) ) /\ ( R e. ( EE ` N ) /\ P e. ( EE ` N ) /\ P e. ( EE ` N ) ) /\ ( C e. ( EE ` N ) /\ E e. ( EE ` N ) /\ d e. ( EE ` N ) ) ) -> ( ( <. <. d , C >. , <. R , P >. >. OuterFiveSeg <. <. P , C >. , <. E , d >. >. /\ d =/= C ) <-> ( ( C Btwn <. d , R >. /\ <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. /\ ( <. d , P >.Cgr <. P , d >. /\ <. C , P >.Cgr <. C , d >. ) ) /\ d =/= C ) ) )
51		5segofs 32113	. . . . 5 |- ( ( ( N e. NN /\ d e. ( EE ` N ) /\ C e. ( EE ` N ) ) /\ ( R e. ( EE ` N ) /\ P e. ( EE ` N ) /\ P e. ( EE ` N ) ) /\ ( C e. ( EE ` N ) /\ E e. ( EE ` N ) /\ d e. ( EE ` N ) ) ) -> ( ( <. <. d , C >. , <. R , P >. >. OuterFiveSeg <. <. P , C >. , <. E , d >. >. /\ d =/= C ) -> <. R , P >.Cgr <. E , d >. ) )
52	50, 51	sylbird 250	. . . 4 |- ( ( ( N e. NN /\ d e. ( EE ` N ) /\ C e. ( EE ` N ) ) /\ ( R e. ( EE ` N ) /\ P e. ( EE ` N ) /\ P e. ( EE ` N ) ) /\ ( C e. ( EE ` N ) /\ E e. ( EE ` N ) /\ d e. ( EE ` N ) ) ) -> ( ( ( C Btwn <. d , R >. /\ <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. /\ ( <. d , P >.Cgr <. P , d >. /\ <. C , P >.Cgr <. C , d >. ) ) /\ d =/= C ) -> <. R , P >.Cgr <. E , d >. ) )
53	5, 8, 6, 16, 7, 7, 6, 17, 8, 52	syl333anc 1358	. . 3 |- ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) -> ( ( ( C Btwn <. d , R >. /\ <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. /\ ( <. d , P >.Cgr <. P , d >. /\ <. C , P >.Cgr <. C , d >. ) ) /\ d =/= C ) -> <. R , P >.Cgr <. E , d >. ) )
54	53	adantr 481	. 2 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> ( ( ( C Btwn <. d , R >. /\ <. d , <. C , R >. >.Cgr3 <. P , <. C , E >. >. /\ ( <. d , P >.Cgr <. P , d >. /\ <. C , P >.Cgr <. C , d >. ) ) /\ d =/= C ) -> <. R , P >.Cgr <. E , d >. ) )
55	38, 48, 54	mp2and 715	1 |- ( ( ( ( N e. NN /\ A e. ( EE ` N ) /\ B e. ( EE ` N ) ) /\ ( ( C e. ( EE ` N ) /\ D e. ( EE ` N ) /\ c e. ( EE ` N ) ) /\ ( d e. ( EE ` N ) /\ b e. ( EE ` N ) /\ E e. ( EE ` N ) ) ) /\ ( P e. ( EE ` N ) /\ Q e. ( EE ` N ) /\ R e. ( EE ` N ) ) ) /\ ( ( ( ( A =/= B /\ B =/= C /\ C =/= c ) /\ ( B Btwn <. A , C >. /\ B Btwn <. A , D >. ) ) /\ ( ( D Btwn <. A , c >. /\ <. D , c >.Cgr <. C , D >. ) /\ ( C Btwn <. A , d >. /\ <. C , d >.Cgr <. C , D >. ) ) /\ ( ( c Btwn <. A , b >. /\ <. c , b >.Cgr <. C , B >. ) /\ ( d Btwn <. A , b >. /\ <. d , b >.Cgr <. D , B >. ) ) ) /\ ( ( E Btwn <. C , c >. /\ E Btwn <. D , d >. ) /\ ( ( C Btwn <. c , P >. /\ <. C , P >.Cgr <. C , d >. ) /\ ( C Btwn <. d , R >. /\ <. C , R >.Cgr <. C , E >. ) /\ ( R Btwn <. P , Q >. /\ <. R , Q >.Cgr <. R , P >. ) ) ) ) ) -> <. R , P >.Cgr <. E , d >. )

Syntax hints:   -> wi 4   <-> wb 196   /\ wa 384   /\ w3a 1037   e. wcel 1990   =/= wne 2794   <.cop 4183   class class class wbr 4653   ` cfv 5888   NNcn 11020   EEcee 25768   Btwn cbtwn 25769  Cgrccgr 25770   OuterFiveSeg cofs 32089  Cgr3ccgr3 32143

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-rep 4771  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-inf2 8538  ax-cnex 9992  ax-resscn 9993  ax-1cn 9994  ax-icn 9995  ax-addcl 9996  ax-addrcl 9997  ax-mulcl 9998  ax-mulrcl 9999  ax-mulcom 10000  ax-addass 10001  ax-mulass 10002  ax-distr 10003  ax-i2m1 10004  ax-1ne0 10005  ax-1rid 10006  ax-rnegex 10007  ax-rrecex 10008  ax-cnre 10009  ax-pre-lttri 10010  ax-pre-lttrn 10011  ax-pre-ltadd 10012  ax-pre-mulgt0 10013  ax-pre-sup 10014

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  df-fal 1489  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-nel 2898  df-ral 2917  df-rex 2918  df-reu 2919  df-rmo 2920  df-rab 2921  df-v 3202  df-sbc 3436  df-csb 3534  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-pss 3590  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-tp 4182  df-op 4184  df-uni 4437  df-int 4476  df-iun 4522  df-br 4654  df-opab 4713  df-mpt 4730  df-tr 4753  df-id 5024  df-eprel 5029  df-po 5035  df-so 5036  df-fr 5073  df-se 5074  df-we 5075  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-rn 5125  df-res 5126  df-ima 5127  df-pred 5680  df-ord 5726  df-on 5727  df-lim 5728  df-suc 5729  df-iota 5851  df-fun 5890  df-fn 5891  df-f 5892  df-f1 5893  df-fo 5894  df-f1o 5895  df-fv 5896  df-isom 5897  df-riota 6611  df-ov 6653  df-oprab 6654  df-mpt2 6655  df-om 7066  df-1st 7168  df-2nd 7169  df-wrecs 7407  df-recs 7468  df-rdg 7506  df-1o 7560  df-oadd 7564  df-er 7742  df-map 7859  df-en 7956  df-dom 7957  df-sdom 7958  df-fin 7959  df-sup 8348  df-oi 8415  df-card 8765  df-pnf 10076  df-mnf 10077  df-xr 10078  df-ltxr 10079  df-le 10080  df-sub 10268  df-neg 10269  df-div 10685  df-nn 11021  df-2 11079  df-3 11080  df-n0 11293  df-z 11378  df-uz 11688  df-rp 11833  df-ico 12181  df-icc 12182  df-fz 12327  df-fzo 12466  df-seq 12802  df-exp 12861  df-hash 13118  df-cj 13839  df-re 13840  df-im 13841  df-sqrt 13975  df-abs 13976  df-clim 14219  df-sum 14417  df-ee 25771  df-btwn 25772  df-cgr 25773  df-ofs 32090  df-ifs 32147  df-cgr3 32148

This theorem is referenced by:  btwnconn1lem9  32202  btwnconn1lem10  32203  btwnconn1lem11  32204