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 |
|
simp11 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( K e. HL /\ W e. H ) ) |
10 |
|
simp12 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( P e. A /\ -. P .<_ W ) ) |
11 |
|
simp13l |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> Q e. A ) |
12 |
|
simp21 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( S e. A /\ -. S .<_ W ) ) |
13 |
|
simp22l |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> T e. A ) |
14 |
|
simp23l |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> P =/= Q ) |
15 |
|
simp23r |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> S =/= T ) |
16 |
|
simp31 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> -. S .<_ ( P .\/ Q ) ) |
17 |
|
simp33 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> U .<_ ( S .\/ T ) ) |
18 |
|
eqid |
|- ( ( P .\/ S ) ./\ W ) = ( ( P .\/ S ) ./\ W ) |
19 |
|
eqid |
|- ( ( P .\/ T ) ./\ W ) = ( ( P .\/ T ) ./\ W ) |
20 |
1 2 3 4 5 6 18 19
|
cdleme11e |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ Q e. A ) /\ ( ( S e. A /\ -. S .<_ W ) /\ T e. A /\ P =/= Q ) /\ ( S =/= T /\ -. S .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( ( P .\/ S ) ./\ W ) =/= ( ( P .\/ T ) ./\ W ) ) |
21 |
9 10 11 12 13 14 15 16 17 20
|
syl333anc |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( ( P .\/ S ) ./\ W ) =/= ( ( P .\/ T ) ./\ W ) ) |
22 |
|
oveq2 |
|- ( F = G -> ( Q .\/ F ) = ( Q .\/ G ) ) |
23 |
22
|
oveq1d |
|- ( F = G -> ( ( Q .\/ F ) ./\ W ) = ( ( Q .\/ G ) ./\ W ) ) |
24 |
23
|
adantl |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) /\ F = G ) -> ( ( Q .\/ F ) ./\ W ) = ( ( Q .\/ G ) ./\ W ) ) |
25 |
|
simp13 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( Q e. A /\ -. Q .<_ W ) ) |
26 |
1 2 3 4 5 6 18 6 7
|
cdleme11k |
|- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( S e. A /\ -. S .<_ W ) ) /\ ( P =/= Q /\ -. S .<_ ( P .\/ Q ) ) ) -> ( ( P .\/ S ) ./\ W ) = ( ( Q .\/ F ) ./\ W ) ) |
27 |
9 10 25 12 14 16 26
|
syl132anc |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( ( P .\/ S ) ./\ W ) = ( ( Q .\/ F ) ./\ W ) ) |
28 |
27
|
adantr |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) /\ F = G ) -> ( ( P .\/ S ) ./\ W ) = ( ( Q .\/ F ) ./\ W ) ) |
29 |
|
simp22 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( T e. A /\ -. T .<_ W ) ) |
30 |
|
simp32 |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> -. T .<_ ( P .\/ Q ) ) |
31 |
1 2 3 4 5 6 19 6 8
|
cdleme11k |
|- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( T e. A /\ -. T .<_ W ) ) /\ ( P =/= Q /\ -. T .<_ ( P .\/ Q ) ) ) -> ( ( P .\/ T ) ./\ W ) = ( ( Q .\/ G ) ./\ W ) ) |
32 |
9 10 25 29 14 30 31
|
syl132anc |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( ( P .\/ T ) ./\ W ) = ( ( Q .\/ G ) ./\ W ) ) |
33 |
32
|
adantr |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) /\ F = G ) -> ( ( P .\/ T ) ./\ W ) = ( ( Q .\/ G ) ./\ W ) ) |
34 |
24 28 33
|
3eqtr4d |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) /\ F = G ) -> ( ( P .\/ S ) ./\ W ) = ( ( P .\/ T ) ./\ W ) ) |
35 |
34
|
ex |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( F = G -> ( ( P .\/ S ) ./\ W ) = ( ( P .\/ T ) ./\ W ) ) ) |
36 |
35
|
necon3d |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> ( ( ( P .\/ S ) ./\ W ) =/= ( ( P .\/ T ) ./\ W ) -> F =/= G ) ) |
37 |
21 36
|
mpd |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( ( S e. A /\ -. S .<_ W ) /\ ( T e. A /\ -. T .<_ W ) /\ ( P =/= Q /\ S =/= T ) ) /\ ( -. S .<_ ( P .\/ Q ) /\ -. T .<_ ( P .\/ Q ) /\ U .<_ ( S .\/ T ) ) ) -> F =/= G ) |