| Step |
Hyp |
Ref |
Expression |
| 1 |
|
cdleme26.b |
|- B = ( Base ` K ) |
| 2 |
|
cdleme26.l |
|- .<_ = ( le ` K ) |
| 3 |
|
cdleme26.j |
|- .\/ = ( join ` K ) |
| 4 |
|
cdleme26.m |
|- ./\ = ( meet ` K ) |
| 5 |
|
cdleme26.a |
|- A = ( Atoms ` K ) |
| 6 |
|
cdleme26.h |
|- H = ( LHyp ` K ) |
| 7 |
|
cdleme27.u |
|- U = ( ( P .\/ Q ) ./\ W ) |
| 8 |
|
cdleme27.f |
|- F = ( ( s .\/ U ) ./\ ( Q .\/ ( ( P .\/ s ) ./\ W ) ) ) |
| 9 |
|
cdleme27.z |
|- Z = ( ( z .\/ U ) ./\ ( Q .\/ ( ( P .\/ z ) ./\ W ) ) ) |
| 10 |
|
cdleme27.n |
|- N = ( ( P .\/ Q ) ./\ ( Z .\/ ( ( s .\/ z ) ./\ W ) ) ) |
| 11 |
|
cdleme27.d |
|- D = ( iota_ u e. B A. z e. A ( ( -. z .<_ W /\ -. z .<_ ( P .\/ Q ) ) -> u = N ) ) |
| 12 |
|
cdleme27.c |
|- C = if ( s .<_ ( P .\/ Q ) , D , F ) |
| 13 |
|
cdleme27.g |
|- G = ( ( t .\/ U ) ./\ ( Q .\/ ( ( P .\/ t ) ./\ W ) ) ) |
| 14 |
|
cdleme27.o |
|- O = ( ( P .\/ Q ) ./\ ( Z .\/ ( ( t .\/ z ) ./\ W ) ) ) |
| 15 |
|
cdleme27.e |
|- E = ( iota_ u e. B A. z e. A ( ( -. z .<_ W /\ -. z .<_ ( P .\/ Q ) ) -> u = O ) ) |
| 16 |
|
cdleme27.y |
|- Y = if ( t .<_ ( P .\/ Q ) , E , G ) |
| 17 |
|
simp11 |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) ) |
| 18 |
|
simp12 |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> P =/= Q ) |
| 19 |
|
simp2l |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> s e. A ) |
| 20 |
|
simp3ll |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> -. s .<_ W ) |
| 21 |
19 20
|
jca |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> ( s e. A /\ -. s .<_ W ) ) |
| 22 |
|
simp2r |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> t e. A ) |
| 23 |
|
simp3rl |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> -. t .<_ W ) |
| 24 |
22 23
|
jca |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> ( t e. A /\ -. t .<_ W ) ) |
| 25 |
|
simp3lr |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> ( s .\/ ( X ./\ W ) ) = X ) |
| 26 |
|
simp3rr |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> ( t .\/ ( X ./\ W ) ) = X ) |
| 27 |
|
simp13 |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> ( X e. B /\ -. X .<_ W ) ) |
| 28 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
|
cdleme28c |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ ( P =/= Q /\ ( s e. A /\ -. s .<_ W ) /\ ( t e. A /\ -. t .<_ W ) ) /\ ( ( s .\/ ( X ./\ W ) ) = X /\ ( t .\/ ( X ./\ W ) ) = X /\ ( X e. B /\ -. X .<_ W ) ) ) -> ( C .\/ ( X ./\ W ) ) = ( Y .\/ ( X ./\ W ) ) ) |
| 29 |
17 18 21 24 25 26 27 28
|
syl133anc |
|- ( ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) /\ ( s e. A /\ t e. A ) /\ ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) ) -> ( C .\/ ( X ./\ W ) ) = ( Y .\/ ( X ./\ W ) ) ) |
| 30 |
29
|
3exp |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) -> ( ( s e. A /\ t e. A ) -> ( ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) -> ( C .\/ ( X ./\ W ) ) = ( Y .\/ ( X ./\ W ) ) ) ) ) |
| 31 |
30
|
ralrimivv |
|- ( ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) /\ P =/= Q /\ ( X e. B /\ -. X .<_ W ) ) -> A. s e. A A. t e. A ( ( ( -. s .<_ W /\ ( s .\/ ( X ./\ W ) ) = X ) /\ ( -. t .<_ W /\ ( t .\/ ( X ./\ W ) ) = X ) ) -> ( C .\/ ( X ./\ W ) ) = ( Y .\/ ( X ./\ W ) ) ) ) |