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Theorem ps-1 17078
Description: The join of two atoms RJS (specifying a projective geometry line) is determined uniquely by any two atoms (specifying two points) less than or equal to that join. Part of Lemma 16.4 of [MaedaMaeda] p. 69, showing projective space condition PS1 in [MaedaMaeda] p. 67.
Hypotheses
Ref Expression
ps1.l |- L = (le` K)
ps1.j |- J = (join` K)
ps1.a |- A = (AtomsNEW` K)
Assertion
Ref Expression
ps-1 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> ((PJQ)L(RJS) <-> (PJQ) = (RJS)))

Proof of Theorem ps-1
StepHypRef Expression
1 opreq1 4889 . . . . . 6 |- (R = P -> (RJS) = (PJS))
21breq2d 3350 . . . . 5 |- (R = P -> ((PJQ)L(RJS) <-> (PJQ)L(PJS)))
31eqeq2d 1895 . . . . 5 |- (R = P -> ((PJQ) = (RJS) <-> (PJQ) = (PJS)))
42, 3imbi12d 688 . . . 4 |- (R = P -> (((PJQ)L(RJS) -> (PJQ) = (RJS)) <-> ((PJQ)L(PJS) -> (PJQ) = (PJS))))
54eqcoms 1887 . . 3 |- (P = R -> (((PJQ)L(RJS) -> (PJQ) = (RJS)) <-> ((PJQ)L(PJS) -> (PJQ) = (PJS))))
6 simpr 350 . . . . . . . . 9 |- (((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) /\ (PJQ)L(RJS)) -> (PJQ)L(RJS))
7 hllat 17026 . . . . . . . . . . . . . 14 |- (K e. HL -> K e. LatNEW)
873ad2ant1 897 . . . . . . . . . . . . 13 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> K e. LatNEW)
9 simp2l 902 . . . . . . . . . . . . . 14 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> P e. A)
10 eqid 1884 . . . . . . . . . . . . . . 15 |- (base` K) = (base` K)
11 ps1.a . . . . . . . . . . . . . . 15 |- A = (AtomsNEW` K)
1210, 11atombase 17003 . . . . . . . . . . . . . 14 |- (P e. A -> P e. (base` K))
139, 12syl 12 . . . . . . . . . . . . 13 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> P e. (base` K))
14 simp3l 904 . . . . . . . . . . . . . 14 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> R e. A)
1510, 11atombase 17003 . . . . . . . . . . . . . 14 |- (R e. A -> R e. (base` K))
1614, 15syl 12 . . . . . . . . . . . . 13 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> R e. (base` K))
17 ps1.j . . . . . . . . . . . . . 14 |- J = (join` K)
1810, 17latjcom 16860 . . . . . . . . . . . . 13 |- ((K e. LatNEW /\ P e. (base` K) /\ R e. (base` K)) -> (PJR) = (RJP))
198, 13, 16, 18syl111anc 1100 . . . . . . . . . . . 12 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (PJR) = (RJP))
2019ad2antrr 440 . . . . . . . . . . 11 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= R) /\ (PJQ)L(RJS)) -> (PJR) = (RJP))
21 simp2r 903 . . . . . . . . . . . . . . . . 17 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> Q e. A)
2210, 11atombase 17003 . . . . . . . . . . . . . . . . 17 |- (Q e. A -> Q e. (base` K))
2321, 22syl 12 . . . . . . . . . . . . . . . 16 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> Q e. (base` K))
24 simp3r 905 . . . . . . . . . . . . . . . . . 18 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> S e. A)
2510, 11atombase 17003 . . . . . . . . . . . . . . . . . 18 |- (S e. A -> S e. (base` K))
2624, 25syl 12 . . . . . . . . . . . . . . . . 17 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> S e. (base` K))
2710, 17latjcl 16852 . . . . . . . . . . . . . . . . 17 |- ((K e. LatNEW /\ R e. (base` K) /\ S e. (base` K)) -> (RJS) e. (base` K))
288, 16, 26, 27syl111anc 1100 . . . . . . . . . . . . . . . 16 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (RJS) e. (base` K))
29 ps1.l . . . . . . . . . . . . . . . . 17 |- L = (le` K)
3010, 29, 17latjle12 16863 . . . . . . . . . . . . . . . 16 |- ((K e. LatNEW /\ (P e. (base` K) /\ Q e. (base` K) /\ (RJS) e. (base` K))) -> ((PL(RJS) /\ QL(RJS)) <-> (PJQ)L(RJS)))
318, 13, 23, 28, 30syl13anc 1102 . . . . . . . . . . . . . . 15 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> ((PL(RJS) /\ QL(RJS)) <-> (PJQ)L(RJS)))
3231adantr 425 . . . . . . . . . . . . . 14 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= R) -> ((PL(RJS) /\ QL(RJS)) <-> (PJQ)L(RJS)))
33 simpl 346 . . . . . . . . . . . . . 14 |- ((PL(RJS) /\ QL(RJS)) -> PL(RJS))
3432, 33syl6bir 232 . . . . . . . . . . . . 13 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= R) -> ((PJQ)L(RJS) -> PL(RJS)))
3529, 17, 11hlatexchb1 17043 . . . . . . . . . . . . . . 15 |- ((K e. HL /\ (P e. A /\ S e. A /\ R e. A) /\ P =/= R) -> (PL(RJS) <-> (RJP) = (RJS)))
36353expa 1067 . . . . . . . . . . . . . 14 |- (((K e. HL /\ (P e. A /\ S e. A /\ R e. A)) /\ P =/= R) -> (PL(RJS) <-> (RJP) = (RJS)))
37 simp1 876 . . . . . . . . . . . . . . 15 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> K e. HL)
389, 24, 143jca 1050 . . . . . . . . . . . . . . 15 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (P e. A /\ S e. A /\ R e. A))
3937, 38jca 310 . . . . . . . . . . . . . 14 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (K e. HL /\ (P e. A /\ S e. A /\ R e. A)))
4036, 39sylan 497 . . . . . . . . . . . . 13 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= R) -> (PL(RJS) <-> (RJP) = (RJS)))
4134, 40sylibd 219 . . . . . . . . . . . 12 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= R) -> ((PJQ)L(RJS) -> (RJP) = (RJS)))
4241imp 377 . . . . . . . . . . 11 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= R) /\ (PJQ)L(RJS)) -> (RJP) = (RJS))
4320, 42eqtrd 1925 . . . . . . . . . 10 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= R) /\ (PJQ)L(RJS)) -> (PJR) = (RJS))
4443adantllr 433 . . . . . . . . 9 |- (((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) /\ (PJQ)L(RJS)) -> (PJR) = (RJS))
456, 44breqtrrd 3363 . . . . . . . 8 |- (((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) /\ (PJQ)L(RJS)) -> (PJQ)L(PJR))
4645ex 402 . . . . . . 7 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) -> ((PJQ)L(RJS) -> (PJQ)L(PJR)))
4710, 17latjcl 16852 . . . . . . . . . . 11 |- ((K e. LatNEW /\ P e. (base` K) /\ R e. (base` K)) -> (PJR) e. (base` K))
488, 13, 16, 47syl111anc 1100 . . . . . . . . . 10 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (PJR) e. (base` K))
4910, 29, 17latjle12 16863 . . . . . . . . . 10 |- ((K e. LatNEW /\ (P e. (base` K) /\ Q e. (base` K) /\ (PJR) e. (base` K))) -> ((PL(PJR) /\ QL(PJR)) <-> (PJQ)L(PJR)))
508, 13, 23, 48, 49syl13anc 1102 . . . . . . . . 9 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> ((PL(PJR) /\ QL(PJR)) <-> (PJQ)L(PJR)))
5150ad2antrr 440 . . . . . . . 8 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) -> ((PL(PJR) /\ QL(PJR)) <-> (PJQ)L(PJR)))
5229, 17, 11hlatexchb1 17043 . . . . . . . . . . . 12 |- ((K e. HL /\ (Q e. A /\ R e. A /\ P e. A) /\ Q =/= P) -> (QL(PJR) <-> (PJQ) = (PJR)))
53523expa 1067 . . . . . . . . . . 11 |- (((K e. HL /\ (Q e. A /\ R e. A /\ P e. A)) /\ Q =/= P) -> (QL(PJR) <-> (PJQ) = (PJR)))
5421, 14, 93jca 1050 . . . . . . . . . . . 12 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (Q e. A /\ R e. A /\ P e. A))
5537, 54jca 310 . . . . . . . . . . 11 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (K e. HL /\ (Q e. A /\ R e. A /\ P e. A)))
56 necom 2094 . . . . . . . . . . . 12 |- (P =/= Q <-> Q =/= P)
5756biimpi 168 . . . . . . . . . . 11 |- (P =/= Q -> Q =/= P)
5853, 55, 57syl2an 503 . . . . . . . . . 10 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> (QL(PJR) <-> (PJQ) = (PJR)))
5958adantr 425 . . . . . . . . 9 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) -> (QL(PJR) <-> (PJQ) = (PJR)))
60 simpr 350 . . . . . . . . 9 |- ((PL(PJR) /\ QL(PJR)) -> QL(PJR))
6159, 60syl5bi 225 . . . . . . . 8 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) -> ((PL(PJR) /\ QL(PJR)) -> (PJQ) = (PJR)))
6251, 61sylbird 222 . . . . . . 7 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) -> ((PJQ)L(PJR) -> (PJQ) = (PJR)))
6346, 62syld 30 . . . . . 6 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) -> ((PJQ)L(RJS) -> (PJQ) = (PJR)))
6463imp 377 . . . . 5 |- (((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) /\ (PJQ)L(RJS)) -> (PJQ) = (PJR))
6564, 44eqtrd 1925 . . . 4 |- (((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) /\ (PJQ)L(RJS)) -> (PJQ) = (RJS))
6665ex 402 . . 3 |- ((((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) /\ P =/= R) -> ((PJQ)L(RJS) -> (PJQ) = (RJS)))
6710, 17latjcl 16852 . . . . . . . 8 |- ((K e. LatNEW /\ P e. (base` K) /\ S e. (base` K)) -> (PJS) e. (base` K))
688, 13, 26, 67syl111anc 1100 . . . . . . 7 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (PJS) e. (base` K))
6910, 29, 17latjle12 16863 . . . . . . 7 |- ((K e. LatNEW /\ (P e. (base` K) /\ Q e. (base` K) /\ (PJS) e. (base` K))) -> ((PL(PJS) /\ QL(PJS)) <-> (PJQ)L(PJS)))
708, 13, 23, 68, 69syl13anc 1102 . . . . . 6 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> ((PL(PJS) /\ QL(PJS)) <-> (PJQ)L(PJS)))
71 simpr 350 . . . . . 6 |- ((PL(PJS) /\ QL(PJS)) -> QL(PJS))
7270, 71syl6bir 232 . . . . 5 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> ((PJQ)L(PJS) -> QL(PJS)))
7372adantr 425 . . . 4 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> ((PJQ)L(PJS) -> QL(PJS)))
7429, 17, 11hlatexchb1 17043 . . . . . 6 |- ((K e. HL /\ (Q e. A /\ S e. A /\ P e. A) /\ Q =/= P) -> (QL(PJS) <-> (PJQ) = (PJS)))
75743expa 1067 . . . . 5 |- (((K e. HL /\ (Q e. A /\ S e. A /\ P e. A)) /\ Q =/= P) -> (QL(PJS) <-> (PJQ) = (PJS)))
7621, 24, 93jca 1050 . . . . . 6 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (Q e. A /\ S e. A /\ P e. A))
7737, 76jca 310 . . . . 5 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (K e. HL /\ (Q e. A /\ S e. A /\ P e. A)))
7875, 77, 57syl2an 503 . . . 4 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> (QL(PJS) <-> (PJQ) = (PJS)))
7973, 78sylibd 219 . . 3 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> ((PJQ)L(PJS) -> (PJQ) = (PJS)))
805, 66, 79pm2.61ne 2087 . 2 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> ((PJQ)L(RJS) -> (PJQ) = (RJS)))
81 breq2 3342 . . 3 |- ((PJQ) = (RJS) -> ((PJQ)L(PJQ) <-> (PJQ)L(RJS)))
8210, 17latjcl 16852 . . . . . 6 |- ((K e. LatNEW /\ P e. (base` K) /\ Q e. (base` K)) -> (PJQ) e. (base` K))
838, 13, 23, 82syl111anc 1100 . . . . 5 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (PJQ) e. (base` K))
8410, 29latref 16855 . . . . 5 |- ((K e. LatNEW /\ (PJQ) e. (base` K)) -> (PJQ)L(PJQ))
858, 83, 84syl11anc 524 . . . 4 |- ((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) -> (PJQ)L(PJQ))
8685adantr 425 . . 3 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> (PJQ)L(PJQ))
8781, 86syl5cbi 226 . 2 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> ((PJQ) = (RJS) -> (PJQ)L(RJS)))
8880, 87impbid 574 1 |- (((K e. HL /\ (P e. A /\ Q e. A) /\ (R e. A /\ S e. A)) /\ P =/= Q) -> ((PJQ)L(RJS) <-> (PJQ) = (RJS)))
Colors of variables: wff set class
Syntax hints:   -> wi 3   <-> wb 163   /\ wa 240   /\ w3a 858   = wceq 1298   e. wcel 1300   =/= wne 2017   class class class wbr 3338  ` cfv 3998  (class class class)co 4884  basecbs 16758  lecple 16759  joincjn 16766  LatNEWclat 16834  AtomsNEWcatm 16981  HLchlt 16983
This theorem was proved from axioms:  ax-1 4  ax-2 5  ax-3 6  ax-mp 7  ax-7 1304  ax-gen 1305  ax-8 1306  ax-9 1307  ax-10 1308  ax-11 1309  ax-12 1310  ax-13 1311  ax-14 1312  ax-17 1317  ax-4 1319  ax-5o 1321  ax-6o 1324  ax-9o 1481  ax-10o 1500  ax-16 1580  ax-11o 1588  ax-ext 1865  ax-rep 3428  ax-sep 3438  ax-nul 3445  ax-pow 3481  ax-pr 3524  ax-un 3790
This theorem depends on definitions:  df-bi 164  df-or 241  df-an 242  df-3an 860  df-tru 1262  df-ex 1327  df-sb 1536  df-eu 1775  df-mo 1776  df-clab 1872  df-cleq 1877  df-clel 1880  df-ne 2019  df-ral 2109  df-rex 2110  df-reu 2111  df-rab 2112  df-v 2294  df-sbc 2454  df-csb 2541  df-dif 2597  df-un 2600  df-in 2603  df-ss 2605  df-nul 2876  df-if 2983  df-pw 3035  df-sn 3049  df-pr 3050  df-op 3053  df-uni 3178  df-br 3339  df-opab 3396  df-id 3586  df-xp 4000  df-rel 4001  df-cnv 4002  df-co 4003  df-dm 4004  df-rn 4005  df-res 4006  df-ima 4007  df-fun 4008  df-fn 4009  df-f 4010  df-f1 4011  df-fo 4012  df-f1o 4013  df-fv 4014  df-opr 4886  df-oprab 4887  df-mpt 5006  df-mpt2 5007  df-iota 5089  df-er 5318  df-en 5427  df-dom 5428  df-sdom 5429  df-undef 5556  df-riota 5560  df-struct 16708  df-poset 16772  df-plt 16780  df-lub 16799  df-join 16801  df-lat 16847  df-oposet 16905  df-ol 16907  df-oml 16908  df-covers 16984  df-atoms 16985  df-atlat 16986  df-hlat 17017
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