Theorem ltresr 9961

Description: Ordering of real subset of complex numbers in terms of signed reals. (Contributed by NM, 22-Feb-1996.) (New usage is discouraged.)

Assertion

Ref	Expression
ltresr	|- ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B )

Proof of Theorem ltresr

Dummy variables x y z w are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		ltrelre 9955	. . . 4 |- <RR C_ ( RR X. RR )
2	1	brel 5168	. . 3 |- ( <. A , 0R >. <RR <. B , 0R >. -> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) )
3		opelreal 9951	. . . 4 |- ( <. A , 0R >. e. RR <-> A e. R. )
4		opelreal 9951	. . . 4 |- ( <. B , 0R >. e. RR <-> B e. R. )
5	3, 4	anbi12i 733	. . 3 |- ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) <-> ( A e. R. /\ B e. R. ) )
6	2, 5	sylib 208	. 2 |- ( <. A , 0R >. <RR <. B , 0R >. -> ( A e. R. /\ B e. R. ) )
7		ltrelsr 9889	. . 3 |- <R C_ ( R. X. R. )
8	7	brel 5168	. 2 |- ( A <R B -> ( A e. R. /\ B e. R. ) )
9		opex 4932	. . . . . . 7 |- <. A , 0R >. e. _V
10		opex 4932	. . . . . . 7 |- <. B , 0R >. e. _V
11		eleq1 2689	. . . . . . . . 9 |- ( x = <. A , 0R >. -> ( x e. RR <-> <. A , 0R >. e. RR ) )
12	11	anbi1d 741	. . . . . . . 8 |- ( x = <. A , 0R >. -> ( ( x e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ y e. RR ) ) )
13		eqeq1 2626	. . . . . . . . . . 11 |- ( x = <. A , 0R >. -> ( x = <. z , 0R >. <-> <. A , 0R >. = <. z , 0R >. ) )
14	13	anbi1d 741	. . . . . . . . . 10 |- ( x = <. A , 0R >. -> ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) ) )
15	14	anbi1d 741	. . . . . . . . 9 |- ( x = <. A , 0R >. -> ( ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) )
16	15	2exbidv 1852	. . . . . . . 8 |- ( x = <. A , 0R >. -> ( E. z E. w ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) )
17	12, 16	anbi12d 747	. . . . . . 7 |- ( x = <. A , 0R >. -> ( ( ( x e. RR /\ y e. RR ) /\ E. z E. w ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) <-> ( ( <. A , 0R >. e. RR /\ y e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) ) )
18		eleq1 2689	. . . . . . . . 9 |- ( y = <. B , 0R >. -> ( y e. RR <-> <. B , 0R >. e. RR ) )
19	18	anbi2d 740	. . . . . . . 8 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. e. RR /\ y e. RR ) <-> ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) ) )
20		eqeq1 2626	. . . . . . . . . . 11 |- ( y = <. B , 0R >. -> ( y = <. w , 0R >. <-> <. B , 0R >. = <. w , 0R >. ) )
21	20	anbi2d 740	. . . . . . . . . 10 |- ( y = <. B , 0R >. -> ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) <-> ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) ) )
22	21	anbi1d 741	. . . . . . . . 9 |- ( y = <. B , 0R >. -> ( ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
23	22	2exbidv 1852	. . . . . . . 8 |- ( y = <. B , 0R >. -> ( E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) <-> E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
24	19, 23	anbi12d 747	. . . . . . 7 |- ( y = <. B , 0R >. -> ( ( ( <. A , 0R >. e. RR /\ y e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) <-> ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) ) )
25		df-lt 9949	. . . . . . 7 |- <RR = { <. x , y >. | ( ( x e. RR /\ y e. RR ) /\ E. z E. w ( ( x = <. z , 0R >. /\ y = <. w , 0R >. ) /\ z <R w ) ) }
26	9, 10, 17, 24, 25	brab 4998	. . . . . 6 |- ( <. A , 0R >. <RR <. B , 0R >. <-> ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) /\ E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
27	26	baib 944	. . . . 5 |- ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) ) )
28		vex 3203	. . . . . . . . . . 11 |- z e. _V
29	28	eqresr 9958	. . . . . . . . . 10 |- ( <. z , 0R >. = <. A , 0R >. <-> z = A )
30		eqcom 2629	. . . . . . . . . 10 |- ( <. A , 0R >. = <. z , 0R >. <-> <. z , 0R >. = <. A , 0R >. )
31		eqcom 2629	. . . . . . . . . 10 |- ( A = z <-> z = A )
32	29, 30, 31	3bitr4i 292	. . . . . . . . 9 |- ( <. A , 0R >. = <. z , 0R >. <-> A = z )
33		vex 3203	. . . . . . . . . . 11 |- w e. _V
34	33	eqresr 9958	. . . . . . . . . 10 |- ( <. w , 0R >. = <. B , 0R >. <-> w = B )
35		eqcom 2629	. . . . . . . . . 10 |- ( <. B , 0R >. = <. w , 0R >. <-> <. w , 0R >. = <. B , 0R >. )
36		eqcom 2629	. . . . . . . . . 10 |- ( B = w <-> w = B )
37	34, 35, 36	3bitr4i 292	. . . . . . . . 9 |- ( <. B , 0R >. = <. w , 0R >. <-> B = w )
38	32, 37	anbi12i 733	. . . . . . . 8 |- ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) <-> ( A = z /\ B = w ) )
39	28, 33	opth2 4949	. . . . . . . 8 |- ( <. A , B >. = <. z , w >. <-> ( A = z /\ B = w ) )
40	38, 39	bitr4i 267	. . . . . . 7 |- ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) <-> <. A , B >. = <. z , w >. )
41	40	anbi1i 731	. . . . . 6 |- ( ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) <-> ( <. A , B >. = <. z , w >. /\ z <R w ) )
42	41	2exbii 1775	. . . . 5 |- ( E. z E. w ( ( <. A , 0R >. = <. z , 0R >. /\ <. B , 0R >. = <. w , 0R >. ) /\ z <R w ) <-> E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) )
43	27, 42	syl6bb 276	. . . 4 |- ( ( <. A , 0R >. e. RR /\ <. B , 0R >. e. RR ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) ) )
44	3, 4, 43	syl2anbr 497	. . 3 |- ( ( A e. R. /\ B e. R. ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) ) )
45		breq12 4658	. . . 4 |- ( ( z = A /\ w = B ) -> ( z <R w <-> A <R B ) )
46	45	copsex2g 4958	. . 3 |- ( ( A e. R. /\ B e. R. ) -> ( E. z E. w ( <. A , B >. = <. z , w >. /\ z <R w ) <-> A <R B ) )
47	44, 46	bitrd 268	. 2 |- ( ( A e. R. /\ B e. R. ) -> ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B ) )
48	6, 8, 47	pm5.21nii 368	1 |- ( <. A , 0R >. <RR <. B , 0R >. <-> A <R B )

Syntax hints:   <-> wb 196   /\ wa 384   = wceq 1483   E.wex 1704   e. wcel 1990   <.cop 4183   class class class wbr 4653   R.cnr 9687   0Rc0r 9688   <R cltr 9693   RRcr 9935   <RR cltrr 9940

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-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906  ax-un 6949  ax-inf2 8538

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1038  df-3an 1039  df-tru 1486  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-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-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-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-omul 7565  df-er 7742  df-ec 7744  df-qs 7748  df-ni 9694  df-pli 9695  df-mi 9696  df-lti 9697  df-plpq 9730  df-mpq 9731  df-ltpq 9732  df-enq 9733  df-nq 9734  df-erq 9735  df-plq 9736  df-mq 9737  df-1nq 9738  df-rq 9739  df-ltnq 9740  df-np 9803  df-1p 9804  df-enr 9877  df-nr 9878  df-ltr 9881  df-0r 9882  df-r 9946  df-lt 9949

This theorem is referenced by:  ltresr2  9962  axpre-lttri  9986  axpre-lttrn  9987  axpre-ltadd  9988  axpre-mulgt0  9989  axpre-sup  9990