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Metamath Proof Explorer

Theorem cdleme12

Description: Part of proof of Lemma E in Crawley p. 113, 3rd paragraph on p. 114, first part of 3rd sentence. F and G represent f(s) and f(t) respectively. (Contributed by NM, 16-Jun-2012)

Ref Expression
Hypotheses cdleme12.l 
|- .<_ = ( le ` K )
cdleme12.j 
|- .\/ = ( join ` K )
cdleme12.m 
|- ./\ = ( meet ` K )
cdleme12.a 
|- A = ( Atoms ` K )
cdleme12.h 
|- H = ( LHyp ` K )
cdleme12.u 
|- U = ( ( P .\/ Q ) ./\ W )
cdleme12.f 
|- F = ( ( S .\/ U ) ./\ ( Q .\/ ( ( P .\/ S ) ./\ W ) ) )
cdleme12.g 
|- G = ( ( T .\/ U ) ./\ ( Q .\/ ( ( P .\/ T ) ./\ W ) ) )
Assertion cdleme12 
|- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( ( S .\/ F ) ./\ ( T .\/ G ) ) = U )

Proof

Step Hyp Ref Expression
1 cdleme12.l 
 |-  .<_ = ( le ` K )
2 cdleme12.j 
 |-  .\/ = ( join ` K )
3 cdleme12.m 
 |-  ./\ = ( meet ` K )
4 cdleme12.a 
 |-  A = ( Atoms ` K )
5 cdleme12.h 
 |-  H = ( LHyp ` K )
6 cdleme12.u 
 |-  U = ( ( P .\/ Q ) ./\ W )
7 cdleme12.f 
 |-  F = ( ( S .\/ U ) ./\ ( Q .\/ ( ( P .\/ S ) ./\ W ) ) )
8 cdleme12.g 
 |-  G = ( ( T .\/ U ) ./\ ( Q .\/ ( ( P .\/ T ) ./\ W ) ) )
9 simp1 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( K e. HL /\ W e. H ) )
10 simp21l 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> P e. A )
11 simp22 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> Q e. A )
12 simp31 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( S e. A /\ -. S .<_ W ) )
13 1 2 3 4 5 6 7 cdleme1 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ Q e. A /\ ( S e. A /\ -. S .<_ W ) ) ) -> ( S .\/ F ) = ( S .\/ U ) )
14 9 10 11 12 13 syl13anc 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( S .\/ F ) = ( S .\/ U ) )
15 simp1l 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> K e. HL )
16 simp21 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( P e. A /\ -. P .<_ W ) )
17 simp23 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> P =/= Q )
18 1 2 3 4 5 6 lhpat2 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ P =/= Q ) ) -> U e. A )
19 9 16 11 17 18 syl112anc 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> U e. A )
20 simp31l 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> S e. A )
21 2 4 hlatjcom 
 |-  ( ( K e. HL /\ U e. A /\ S e. A ) -> ( U .\/ S ) = ( S .\/ U ) )
22 15 19 20 21 syl3anc 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( U .\/ S ) = ( S .\/ U ) )
23 14 22 eqtr4d 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( S .\/ F ) = ( U .\/ S ) )
24 simp32 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( T e. A /\ -. T .<_ W ) )
25 1 2 3 4 5 6 8 cdleme1 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ Q e. A /\ ( T e. A /\ -. T .<_ W ) ) ) -> ( T .\/ G ) = ( T .\/ U ) )
26 9 10 11 24 25 syl13anc 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( T .\/ G ) = ( T .\/ U ) )
27 simp32l 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> T e. A )
28 2 4 hlatjcom 
 |-  ( ( K e. HL /\ U e. A /\ T e. A ) -> ( U .\/ T ) = ( T .\/ U ) )
29 15 19 27 28 syl3anc 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( U .\/ T ) = ( T .\/ U ) )
30 26 29 eqtr4d 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( T .\/ G ) = ( U .\/ T ) )
31 23 30 oveq12d 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( ( S .\/ F ) ./\ ( T .\/ G ) ) = ( ( U .\/ S ) ./\ ( U .\/ T ) ) )
32 simp33 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( S =/= T /\ -. U .<_ ( S .\/ T ) ) )
33 1 2 3 4 2llnma2 
 |-  ( ( K e. HL /\ ( S e. A /\ T e. A /\ U e. A ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) -> ( ( U .\/ S ) ./\ ( U .\/ T ) ) = U )
34 15 20 27 19 32 33 syl131anc 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( ( U .\/ S ) ./\ ( U .\/ T ) ) = U )
35 31 34 eqtrd 
 |-  ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ Q e. A /\ P =/= Q ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( S =/= T /\ -. U .<_ ( S .\/ T ) ) ) ) -> ( ( S .\/ F ) ./\ ( T .\/ G ) ) = U )