dalem17 - Mathbox for Norm Megill

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Theorem dalem17 34966

Description: Lemma for dath 35022. When planes

and

are equal, the center of perspectivity

is in

. (Contributed by NM, 1-Aug-2012.)

**Hypotheses**
Ref	Expression
dalema.ph	$/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$
dalemc.l
dalemc.j	$.\/$
dalemc.a
dalem17.o
dalem17.y	$.\/$ $.\/$
dalem17.z	$.\/$ $.\/$

**Assertion**
Ref	Expression
dalem17	$/\$

**Proof of Theorem dalem17**
Step	Hyp	Ref	Expression
1		dalema.ph	. . . 4 $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$
2	1	dalemclrju 34922	. . 3 $.\/$
3	2	adantr 481	. 2 $/\$ $.\/$
4	1	dalemkelat 34910	. . . . . 6
5		dalemc.j	. . . . . . 7 $.\/$
6		dalemc.a	. . . . . . 7
7	1, 5, 6	dalempjqeb 34931	. . . . . 6 $.\/$
8	1, 6	dalemreb 34927	. . . . . 6
9		eqid 2622	. . . . . . 7
10		dalemc.l	. . . . . . 7
11	9, 10, 5	latlej2 17061	. . . . . 6 $/\$ $.\/$ $/\$ $.\/$ $.\/$
12	4, 7, 8, 11	syl3anc 1326	. . . . 5 $.\/$ $.\/$
13		dalem17.y	. . . . 5 $.\/$ $.\/$
14	12, 13	syl6breqr 4695	. . . 4
15	14	adantr 481	. . 3 $/\$
16	1, 5, 6	dalemsjteb 34932	. . . . . . 7 $.\/$
17	1, 6	dalemueb 34930	. . . . . . 7
18	9, 10, 5	latlej2 17061	. . . . . . 7 $/\$ $.\/$ $/\$ $.\/$ $.\/$
19	4, 16, 17, 18	syl3anc 1326	. . . . . 6 $.\/$ $.\/$
20		dalem17.z	. . . . . 6 $.\/$ $.\/$
21	19, 20	syl6breqr 4695	. . . . 5
22	21	adantr 481	. . . 4 $/\$
23		simpr 477	. . . 4 $/\$
24	22, 23	breqtrrd 4681	. . 3 $/\$
25		dalem17.o	. . . . . 6
26	1, 25	dalemyeb 34935	. . . . 5
27	9, 10, 5	latjle12 17062	. . . . 5 $/\$ $/\$ $/\$ $/\$ $.\/$
28	4, 8, 17, 26, 27	syl13anc 1328	. . . 4 $/\$ $.\/$
29	28	adantr 481	. . 3 $/\$ $/\$ $.\/$
30	15, 24, 29	mpbi2and 956	. 2 $/\$ $.\/$
31	1, 6	dalemceb 34924	. . . 4
32	1	dalemkehl 34909	. . . . 5
33	1	dalemrea 34914	. . . . 5
34	1	dalemuea 34917	. . . . 5
35	9, 5, 6	hlatjcl 34653	. . . . 5 $/\$ $/\$ $.\/$
36	32, 33, 34, 35	syl3anc 1326	. . . 4 $.\/$
37	9, 10	lattr 17056	. . . 4 $/\$ $/\$ $.\/$ $/\$ $.\/$ $/\$ $.\/$
38	4, 31, 36, 26, 37	syl13anc 1328	. . 3 $.\/$ $/\$ $.\/$
39	38	adantr 481	. 2 $/\$ $.\/$ $/\$ $.\/$
40	3, 30, 39	mp2and 715	1 $/\$

Colors of variables: wff setvar class

Syntax hints:

wn 3

wi 4

wb 196 $/\$ wa 384 $/\$ w3a 1037

wceq 1483

wcel 1990 class class class wbr 4653

cfv 5888 (class class class)co 6650

cbs 15857

cple 15948

cjn 16944

clat 17045

catm 34550

chlt 34637

clpl 34778

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

This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 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-rab 2921 df-v 3202 df-sbc 3436 df-csb 3534 df-dif 3577 df-un 3579 df-in 3581 df-ss 3588 df-nul 3916 df-if 4087 df-pw 4160 df-sn 4178 df-pr 4180 df-op 4184 df-uni 4437 df-iun 4522 df-br 4654 df-opab 4713 df-mpt 4730 df-id 5024 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-iota 5851 df-fun 5890 df-fn 5891 df-f 5892 df-f1 5893 df-fo 5894 df-f1o 5895 df-fv 5896 df-riota 6611 df-ov 6653 df-oprab 6654 df-poset 16946 df-lub 16974 df-glb 16975 df-join 16976 df-meet 16977 df-lat 17046 df-ats 34554 df-atl 34585 df-cvlat 34609 df-hlat 34638 df-lplanes 34785

This theorem is referenced by: dalem19 34968 dalem25 34984

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