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Description: Part of proof of Lemma N of Crawley p. 121 line 31. (Contributed by NM, 21-Feb-2014)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | cdlemn3.l | |- .<_ = ( le ` K ) |
|
| cdlemn3.a | |- A = ( Atoms ` K ) |
||
| cdlemn3.p | |- P = ( ( oc ` K ) ` W ) |
||
| cdlemn3.h | |- H = ( LHyp ` K ) |
||
| cdlemn3.t | |- T = ( ( LTrn ` K ) ` W ) |
||
| cdlemn3.f | |- F = ( iota_ h e. T ( h ` P ) = Q ) |
||
| cdlemn3.g | |- G = ( iota_ h e. T ( h ` P ) = R ) |
||
| cdlemn3.j | |- J = ( iota_ h e. T ( h ` Q ) = R ) |
||
| Assertion | cdlemn3 | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( J o. F ) = G ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | cdlemn3.l | |- .<_ = ( le ` K ) |
|
| 2 | cdlemn3.a | |- A = ( Atoms ` K ) |
|
| 3 | cdlemn3.p | |- P = ( ( oc ` K ) ` W ) |
|
| 4 | cdlemn3.h | |- H = ( LHyp ` K ) |
|
| 5 | cdlemn3.t | |- T = ( ( LTrn ` K ) ` W ) |
|
| 6 | cdlemn3.f | |- F = ( iota_ h e. T ( h ` P ) = Q ) |
|
| 7 | cdlemn3.g | |- G = ( iota_ h e. T ( h ` P ) = R ) |
|
| 8 | cdlemn3.j | |- J = ( iota_ h e. T ( h ` Q ) = R ) |
|
| 9 | simp1 | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( K e. HL /\ W e. H ) ) |
|
| 10 | 1 2 4 3 | lhpocnel2 | |- ( ( K e. HL /\ W e. H ) -> ( P e. A /\ -. P .<_ W ) ) |
| 11 | 10 | 3ad2ant1 | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( P e. A /\ -. P .<_ W ) ) |
| 12 | simp2 | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( Q e. A /\ -. Q .<_ W ) ) |
|
| 13 | 1 2 4 5 6 | ltrniotacl | |- ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) -> F e. T ) |
| 14 | 9 11 12 13 | syl3anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> F e. T ) |
| 15 | eqid | |- ( Base ` K ) = ( Base ` K ) |
|
| 16 | 15 4 5 | ltrn1o | |- ( ( ( K e. HL /\ W e. H ) /\ F e. T ) -> F : ( Base ` K ) -1-1-onto-> ( Base ` K ) ) |
| 17 | 9 14 16 | syl2anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> F : ( Base ` K ) -1-1-onto-> ( Base ` K ) ) |
| 18 | f1of | |- ( F : ( Base ` K ) -1-1-onto-> ( Base ` K ) -> F : ( Base ` K ) --> ( Base ` K ) ) |
|
| 19 | 17 18 | syl | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> F : ( Base ` K ) --> ( Base ` K ) ) |
| 20 | 11 | simpld | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> P e. A ) |
| 21 | 15 2 | atbase | |- ( P e. A -> P e. ( Base ` K ) ) |
| 22 | 20 21 | syl | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> P e. ( Base ` K ) ) |
| 23 | fvco3 | |- ( ( F : ( Base ` K ) --> ( Base ` K ) /\ P e. ( Base ` K ) ) -> ( ( J o. F ) ` P ) = ( J ` ( F ` P ) ) ) |
|
| 24 | 19 22 23 | syl2anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( ( J o. F ) ` P ) = ( J ` ( F ` P ) ) ) |
| 25 | 1 2 4 5 6 | ltrniotaval | |- ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( Q e. A /\ -. Q .<_ W ) ) -> ( F ` P ) = Q ) |
| 26 | 9 11 12 25 | syl3anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( F ` P ) = Q ) |
| 27 | 26 | fveq2d | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( J ` ( F ` P ) ) = ( J ` Q ) ) |
| 28 | 1 2 4 5 8 | ltrniotaval | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( J ` Q ) = R ) |
| 29 | 24 27 28 | 3eqtrd | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( ( J o. F ) ` P ) = R ) |
| 30 | 1 2 4 5 7 | ltrniotaval | |- ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( G ` P ) = R ) |
| 31 | 11 30 | syld3an2 | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( G ` P ) = R ) |
| 32 | 29 31 | eqtr4d | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( ( J o. F ) ` P ) = ( G ` P ) ) |
| 33 | 1 2 4 5 8 | ltrniotacl | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> J e. T ) |
| 34 | 4 5 | ltrnco | |- ( ( ( K e. HL /\ W e. H ) /\ J e. T /\ F e. T ) -> ( J o. F ) e. T ) |
| 35 | 9 33 14 34 | syl3anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( J o. F ) e. T ) |
| 36 | 1 2 4 5 7 | ltrniotacl | |- ( ( ( K e. HL /\ W e. H ) /\ ( P e. A /\ -. P .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> G e. T ) |
| 37 | 11 36 | syld3an2 | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> G e. T ) |
| 38 | 1 2 4 5 | ltrneq3 | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( J o. F ) e. T /\ G e. T ) /\ ( P e. A /\ -. P .<_ W ) ) -> ( ( ( J o. F ) ` P ) = ( G ` P ) <-> ( J o. F ) = G ) ) |
| 39 | 9 35 37 11 38 | syl121anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( ( ( J o. F ) ` P ) = ( G ` P ) <-> ( J o. F ) = G ) ) |
| 40 | 32 39 | mpbid | |- ( ( ( K e. HL /\ W e. H ) /\ ( Q e. A /\ -. Q .<_ W ) /\ ( R e. A /\ -. R .<_ W ) ) -> ( J o. F ) = G ) |