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Description: Partial isomorphism A of a lattice glb. (Contributed by NM, 3-Dec-2013) (New usage is discouraged.)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | diaglb.g | |- G = ( glb ` K ) |
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| diaglb.h | |- H = ( LHyp ` K ) |
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| diaglb.i | |- I = ( ( DIsoA ` K ) ` W ) |
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| Assertion | diaglbN | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( I ` ( G ` S ) ) = |^|_ x e. S ( I ` x ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | diaglb.g | |- G = ( glb ` K ) |
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| 2 | diaglb.h | |- H = ( LHyp ` K ) |
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| 3 | diaglb.i | |- I = ( ( DIsoA ` K ) ` W ) |
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| 4 | simpl | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( K e. HL /\ W e. H ) ) |
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| 5 | hlclat | |- ( K e. HL -> K e. CLat ) |
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| 6 | 5 | ad2antrr | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> K e. CLat ) |
| 7 | eqid | |- ( Base ` K ) = ( Base ` K ) |
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| 8 | eqid | |- ( le ` K ) = ( le ` K ) |
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| 9 | 7 8 2 3 | diadm | |- ( ( K e. HL /\ W e. H ) -> dom I = { y e. ( Base ` K ) | y ( le ` K ) W } ) |
| 10 | 9 | sseq2d | |- ( ( K e. HL /\ W e. H ) -> ( S C_ dom I <-> S C_ { y e. ( Base ` K ) | y ( le ` K ) W } ) ) |
| 11 | 10 | biimpa | |- ( ( ( K e. HL /\ W e. H ) /\ S C_ dom I ) -> S C_ { y e. ( Base ` K ) | y ( le ` K ) W } ) |
| 12 | 11 | adantrr | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> S C_ { y e. ( Base ` K ) | y ( le ` K ) W } ) |
| 13 | ssrab2 | |- { y e. ( Base ` K ) | y ( le ` K ) W } C_ ( Base ` K ) |
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| 14 | 12 13 | sstrdi | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> S C_ ( Base ` K ) ) |
| 15 | 7 1 | clatglbcl | |- ( ( K e. CLat /\ S C_ ( Base ` K ) ) -> ( G ` S ) e. ( Base ` K ) ) |
| 16 | 6 14 15 | syl2anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( G ` S ) e. ( Base ` K ) ) |
| 17 | simprr | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> S =/= (/) ) |
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| 18 | n0 | |- ( S =/= (/) <-> E. x x e. S ) |
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| 19 | 17 18 | sylib | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> E. x x e. S ) |
| 20 | hllat | |- ( K e. HL -> K e. Lat ) |
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| 21 | 20 | ad3antrrr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> K e. Lat ) |
| 22 | 16 | adantr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> ( G ` S ) e. ( Base ` K ) ) |
| 23 | ssel2 | |- ( ( S C_ dom I /\ x e. S ) -> x e. dom I ) |
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| 24 | 23 | adantlr | |- ( ( ( S C_ dom I /\ S =/= (/) ) /\ x e. S ) -> x e. dom I ) |
| 25 | 24 | adantll | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> x e. dom I ) |
| 26 | 7 8 2 3 | diaeldm | |- ( ( K e. HL /\ W e. H ) -> ( x e. dom I <-> ( x e. ( Base ` K ) /\ x ( le ` K ) W ) ) ) |
| 27 | 26 | ad2antrr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> ( x e. dom I <-> ( x e. ( Base ` K ) /\ x ( le ` K ) W ) ) ) |
| 28 | 25 27 | mpbid | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> ( x e. ( Base ` K ) /\ x ( le ` K ) W ) ) |
| 29 | 28 | simpld | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> x e. ( Base ` K ) ) |
| 30 | 7 2 | lhpbase | |- ( W e. H -> W e. ( Base ` K ) ) |
| 31 | 30 | ad3antlr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> W e. ( Base ` K ) ) |
| 32 | 5 | ad3antrrr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> K e. CLat ) |
| 33 | 14 | adantr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> S C_ ( Base ` K ) ) |
| 34 | simpr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> x e. S ) |
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| 35 | 7 8 1 | clatglble | |- ( ( K e. CLat /\ S C_ ( Base ` K ) /\ x e. S ) -> ( G ` S ) ( le ` K ) x ) |
| 36 | 32 33 34 35 | syl3anc | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> ( G ` S ) ( le ` K ) x ) |
| 37 | 28 | simprd | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> x ( le ` K ) W ) |
| 38 | 7 8 21 22 29 31 36 37 | lattrd | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> ( G ` S ) ( le ` K ) W ) |
| 39 | 19 38 | exlimddv | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( G ` S ) ( le ` K ) W ) |
| 40 | eqid | |- ( ( LTrn ` K ) ` W ) = ( ( LTrn ` K ) ` W ) |
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| 41 | eqid | |- ( ( trL ` K ) ` W ) = ( ( trL ` K ) ` W ) |
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| 42 | 7 8 2 40 41 3 | diaelval | |- ( ( ( K e. HL /\ W e. H ) /\ ( ( G ` S ) e. ( Base ` K ) /\ ( G ` S ) ( le ` K ) W ) ) -> ( f e. ( I ` ( G ` S ) ) <-> ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) ( G ` S ) ) ) ) |
| 43 | 4 16 39 42 | syl12anc | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( f e. ( I ` ( G ` S ) ) <-> ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) ( G ` S ) ) ) ) |
| 44 | r19.28zv | |- ( S =/= (/) -> ( A. x e. S ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) <-> ( f e. ( ( LTrn ` K ) ` W ) /\ A. x e. S ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) ) |
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| 45 | 44 | ad2antll | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( A. x e. S ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) <-> ( f e. ( ( LTrn ` K ) ` W ) /\ A. x e. S ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) ) |
| 46 | simpll | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> ( K e. HL /\ W e. H ) ) |
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| 47 | 7 8 2 40 41 3 | diaelval | |- ( ( ( K e. HL /\ W e. H ) /\ ( x e. ( Base ` K ) /\ x ( le ` K ) W ) ) -> ( f e. ( I ` x ) <-> ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) ) |
| 48 | 46 28 47 | syl2anc | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ x e. S ) -> ( f e. ( I ` x ) <-> ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) ) |
| 49 | 48 | ralbidva | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( A. x e. S f e. ( I ` x ) <-> A. x e. S ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) ) |
| 50 | 5 | ad3antrrr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ f e. ( ( LTrn ` K ) ` W ) ) -> K e. CLat ) |
| 51 | 7 2 40 41 | trlcl | |- ( ( ( K e. HL /\ W e. H ) /\ f e. ( ( LTrn ` K ) ` W ) ) -> ( ( ( trL ` K ) ` W ) ` f ) e. ( Base ` K ) ) |
| 52 | 51 | adantlr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ f e. ( ( LTrn ` K ) ` W ) ) -> ( ( ( trL ` K ) ` W ) ` f ) e. ( Base ` K ) ) |
| 53 | 14 | adantr | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ f e. ( ( LTrn ` K ) ` W ) ) -> S C_ ( Base ` K ) ) |
| 54 | 7 8 1 | clatleglb | |- ( ( K e. CLat /\ ( ( ( trL ` K ) ` W ) ` f ) e. ( Base ` K ) /\ S C_ ( Base ` K ) ) -> ( ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) ( G ` S ) <-> A. x e. S ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) |
| 55 | 50 52 53 54 | syl3anc | |- ( ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) /\ f e. ( ( LTrn ` K ) ` W ) ) -> ( ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) ( G ` S ) <-> A. x e. S ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) |
| 56 | 55 | pm5.32da | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) ( G ` S ) ) <-> ( f e. ( ( LTrn ` K ) ` W ) /\ A. x e. S ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) x ) ) ) |
| 57 | 45 49 56 | 3bitr4rd | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) ( G ` S ) ) <-> A. x e. S f e. ( I ` x ) ) ) |
| 58 | vex | |- f e. _V |
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| 59 | eliin | |- ( f e. _V -> ( f e. |^|_ x e. S ( I ` x ) <-> A. x e. S f e. ( I ` x ) ) ) |
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| 60 | 58 59 | ax-mp | |- ( f e. |^|_ x e. S ( I ` x ) <-> A. x e. S f e. ( I ` x ) ) |
| 61 | 57 60 | bitr4di | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( ( f e. ( ( LTrn ` K ) ` W ) /\ ( ( ( trL ` K ) ` W ) ` f ) ( le ` K ) ( G ` S ) ) <-> f e. |^|_ x e. S ( I ` x ) ) ) |
| 62 | 43 61 | bitrd | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( f e. ( I ` ( G ` S ) ) <-> f e. |^|_ x e. S ( I ` x ) ) ) |
| 63 | 62 | eqrdv | |- ( ( ( K e. HL /\ W e. H ) /\ ( S C_ dom I /\ S =/= (/) ) ) -> ( I ` ( G ` S ) ) = |^|_ x e. S ( I ` x ) ) |