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Description: TODO: FIX COMMENT. (Contributed by NM, 25-Apr-2013)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | cdlemg4.l | |- .<_ = ( le ` K ) |
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| cdlemg4.a | |- A = ( Atoms ` K ) |
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| cdlemg4.h | |- H = ( LHyp ` K ) |
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| cdlemg4.t | |- T = ( ( LTrn ` K ) ` W ) |
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| cdlemg4.r | |- R = ( ( trL ` K ) ` W ) |
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| cdlemg4.j | |- .\/ = ( join ` K ) |
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| cdlemg4b.v | |- V = ( R ` G ) |
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| cdlemg4.m | |- ./\ = ( meet ` K ) |
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| Assertion | cdlemg4e | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> ( F ` ( G ` Q ) ) = ( ( ( G ` Q ) .\/ ( R ` F ) ) ./\ ( ( F ` ( G ` P ) ) .\/ ( ( ( G ` P ) .\/ ( G ` Q ) ) ./\ W ) ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cdlemg4.l | |- .<_ = ( le ` K ) |
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| 2 | cdlemg4.a | |- A = ( Atoms ` K ) |
|
| 3 | cdlemg4.h | |- H = ( LHyp ` K ) |
|
| 4 | cdlemg4.t | |- T = ( ( LTrn ` K ) ` W ) |
|
| 5 | cdlemg4.r | |- R = ( ( trL ` K ) ` W ) |
|
| 6 | cdlemg4.j | |- .\/ = ( join ` K ) |
|
| 7 | cdlemg4b.v | |- V = ( R ` G ) |
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| 8 | cdlemg4.m | |- ./\ = ( meet ` K ) |
|
| 9 | simp1 | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> ( K e. HL /\ W e. H ) ) |
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| 10 | simp23 | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> F e. T ) |
|
| 11 | simp31 | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> G e. T ) |
|
| 12 | simp21 | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> ( P e. A /\ -. P .<_ W ) ) |
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| 13 | 1 2 3 4 | ltrnel | |- ( ( ( K e. HL /\ W e. H ) /\ G e. T /\ ( P e. A /\ -. P .<_ W ) ) -> ( ( G ` P ) e. A /\ -. ( G ` P ) .<_ W ) ) |
| 14 | 9 11 12 13 | syl3anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> ( ( G ` P ) e. A /\ -. ( G ` P ) .<_ W ) ) |
| 15 | simp22 | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> ( Q e. A /\ -. Q .<_ W ) ) |
|
| 16 | 1 2 3 4 | ltrnel | |- ( ( ( K e. HL /\ W e. H ) /\ G e. T /\ ( Q e. A /\ -. Q .<_ W ) ) -> ( ( G ` Q ) e. A /\ -. ( G ` Q ) .<_ W ) ) |
| 17 | 9 11 15 16 | syl3anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> ( ( G ` Q ) e. A /\ -. ( G ` Q ) .<_ W ) ) |
| 18 | 1 2 3 4 5 6 7 | cdlemg4d | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> -. ( G ` Q ) .<_ ( ( G ` P ) .\/ ( F ` ( G ` P ) ) ) ) |
| 19 | 1 6 8 2 3 4 5 | cdlemc | |- ( ( ( K e. HL /\ W e. H ) /\ ( F e. T /\ ( ( G ` P ) e. A /\ -. ( G ` P ) .<_ W ) /\ ( ( G ` Q ) e. A /\ -. ( G ` Q ) .<_ W ) ) /\ -. ( G ` Q ) .<_ ( ( G ` P ) .\/ ( F ` ( G ` P ) ) ) ) -> ( F ` ( G ` Q ) ) = ( ( ( G ` Q ) .\/ ( R ` F ) ) ./\ ( ( F ` ( G ` P ) ) .\/ ( ( ( G ` P ) .\/ ( G ` Q ) ) ./\ W ) ) ) ) |
| 20 | 9 10 14 17 18 19 | syl131anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) /\ F e. T ) /\ ( G e. T /\ -. Q .<_ ( P .\/ V ) /\ ( F ` ( G ` P ) ) = P ) ) -> ( F ` ( G ` Q ) ) = ( ( ( G ` Q ) .\/ ( R ` F ) ) ./\ ( ( F ` ( G ` P ) ) .\/ ( ( ( G ` P ) .\/ ( G ` Q ) ) ./\ W ) ) ) ) |