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Description: An isomorphism of simple pseudographs is a bijection between their vertices which induces a bijection between their edges. (Contributed by AV, 21-Apr-2025)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | isusgrim.v | |- V = ( Vtx ` G ) |
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| isusgrim.w | |- W = ( Vtx ` H ) |
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| isusgrim.e | |- E = ( Edg ` G ) |
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| isusgrim.d | |- D = ( Edg ` H ) |
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| isuspgrim0lem.i | |- I = ( iEdg ` G ) |
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| isuspgrim0lem.j | |- J = ( iEdg ` H ) |
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| isuspgrim0lem.m | |- M = ( x e. E |-> ( F " x ) ) |
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| isuspgrim0lem.n | |- N = ( x e. dom I |-> ( `' J ` ( M ` ( I ` x ) ) ) ) |
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| Assertion | isuspgrim0lem | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> ( N : dom I -1-1-onto-> dom J /\ A. i e. dom I ( J ` ( N ` i ) ) = ( F " ( I ` i ) ) ) ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isusgrim.v | |- V = ( Vtx ` G ) |
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| 2 | isusgrim.w | |- W = ( Vtx ` H ) |
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| 3 | isusgrim.e | |- E = ( Edg ` G ) |
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| 4 | isusgrim.d | |- D = ( Edg ` H ) |
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| 5 | isuspgrim0lem.i | |- I = ( iEdg ` G ) |
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| 6 | isuspgrim0lem.j | |- J = ( iEdg ` H ) |
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| 7 | isuspgrim0lem.m | |- M = ( x e. E |-> ( F " x ) ) |
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| 8 | isuspgrim0lem.n | |- N = ( x e. dom I |-> ( `' J ` ( M ` ( I ` x ) ) ) ) |
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| 9 | 6 | uspgrf1oedg | |- ( H e. USPGraph -> J : dom J -1-1-onto-> ( Edg ` H ) ) |
| 10 | 9 | 3ad2ant2 | |- ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) -> J : dom J -1-1-onto-> ( Edg ` H ) ) |
| 11 | 10 | ad2antrr | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> J : dom J -1-1-onto-> ( Edg ` H ) ) |
| 12 | f1of | |- ( M : E -1-1-onto-> D -> M : E --> D ) |
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| 13 | 12 | adantl | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> M : E --> D ) |
| 14 | 13 | adantr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ x e. dom I ) -> M : E --> D ) |
| 15 | uspgruhgr | |- ( G e. USPGraph -> G e. UHGraph ) |
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| 16 | 5 | uhgrfun | |- ( G e. UHGraph -> Fun I ) |
| 17 | 15 16 | syl | |- ( G e. USPGraph -> Fun I ) |
| 18 | edgval | |- ( Edg ` G ) = ran ( iEdg ` G ) |
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| 19 | 5 | eqcomi | |- ( iEdg ` G ) = I |
| 20 | 19 | rneqi | |- ran ( iEdg ` G ) = ran I |
| 21 | 3 18 20 | 3eqtri | |- E = ran I |
| 22 | feq3 | |- ( E = ran I -> ( I : dom I --> E <-> I : dom I --> ran I ) ) |
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| 23 | 21 22 | ax-mp | |- ( I : dom I --> E <-> I : dom I --> ran I ) |
| 24 | fdmrn | |- ( Fun I <-> I : dom I --> ran I ) |
|
| 25 | 23 24 | bitr4i | |- ( I : dom I --> E <-> Fun I ) |
| 26 | 17 25 | sylibr | |- ( G e. USPGraph -> I : dom I --> E ) |
| 27 | 26 | 3ad2ant1 | |- ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) -> I : dom I --> E ) |
| 28 | 27 | ad2antrr | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> I : dom I --> E ) |
| 29 | 28 | ffvelcdmda | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ x e. dom I ) -> ( I ` x ) e. E ) |
| 30 | 14 29 | ffvelcdmd | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ x e. dom I ) -> ( M ` ( I ` x ) ) e. D ) |
| 31 | 30 4 | eleqtrdi | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ x e. dom I ) -> ( M ` ( I ` x ) ) e. ( Edg ` H ) ) |
| 32 | f1ocnvdm | |- ( ( J : dom J -1-1-onto-> ( Edg ` H ) /\ ( M ` ( I ` x ) ) e. ( Edg ` H ) ) -> ( `' J ` ( M ` ( I ` x ) ) ) e. dom J ) |
|
| 33 | 11 31 32 | syl2an2r | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ x e. dom I ) -> ( `' J ` ( M ` ( I ` x ) ) ) e. dom J ) |
| 34 | 33 | ralrimiva | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> A. x e. dom I ( `' J ` ( M ` ( I ` x ) ) ) e. dom J ) |
| 35 | 2fveq3 | |- ( x = ( `' I ` ( `' M ` ( J ` i ) ) ) -> ( M ` ( I ` x ) ) = ( M ` ( I ` ( `' I ` ( `' M ` ( J ` i ) ) ) ) ) ) |
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| 36 | 35 | eqeq2d | |- ( x = ( `' I ` ( `' M ` ( J ` i ) ) ) -> ( ( J ` i ) = ( M ` ( I ` x ) ) <-> ( J ` i ) = ( M ` ( I ` ( `' I ` ( `' M ` ( J ` i ) ) ) ) ) ) ) |
| 37 | 5 | uspgrf1oedg | |- ( G e. USPGraph -> I : dom I -1-1-onto-> ( Edg ` G ) ) |
| 38 | 37 | 3ad2ant1 | |- ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) -> I : dom I -1-1-onto-> ( Edg ` G ) ) |
| 39 | 38 | ad2antrr | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> I : dom I -1-1-onto-> ( Edg ` G ) ) |
| 40 | f1oeq2 | |- ( E = ( Edg ` G ) -> ( M : E -1-1-onto-> D <-> M : ( Edg ` G ) -1-1-onto-> D ) ) |
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| 41 | 3 40 | ax-mp | |- ( M : E -1-1-onto-> D <-> M : ( Edg ` G ) -1-1-onto-> D ) |
| 42 | 41 | bilani | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> M : ( Edg ` G ) -1-1-onto-> D ) |
| 43 | f1oeq3 | |- ( D = ( Edg ` H ) -> ( J : dom J -1-1-onto-> D <-> J : dom J -1-1-onto-> ( Edg ` H ) ) ) |
|
| 44 | 4 43 | ax-mp | |- ( J : dom J -1-1-onto-> D <-> J : dom J -1-1-onto-> ( Edg ` H ) ) |
| 45 | 11 44 | sylibr | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> J : dom J -1-1-onto-> D ) |
| 46 | f1of | |- ( J : dom J -1-1-onto-> D -> J : dom J --> D ) |
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| 47 | 45 46 | syl | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> J : dom J --> D ) |
| 48 | 47 | ffvelcdmda | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( J ` i ) e. D ) |
| 49 | f1ocnvdm | |- ( ( M : ( Edg ` G ) -1-1-onto-> D /\ ( J ` i ) e. D ) -> ( `' M ` ( J ` i ) ) e. ( Edg ` G ) ) |
|
| 50 | 42 48 49 | syl2an2r | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( `' M ` ( J ` i ) ) e. ( Edg ` G ) ) |
| 51 | f1ocnvdm | |- ( ( I : dom I -1-1-onto-> ( Edg ` G ) /\ ( `' M ` ( J ` i ) ) e. ( Edg ` G ) ) -> ( `' I ` ( `' M ` ( J ` i ) ) ) e. dom I ) |
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| 52 | 39 50 51 | syl2an2r | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( `' I ` ( `' M ` ( J ` i ) ) ) e. dom I ) |
| 53 | simpll1 | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> G e. USPGraph ) |
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| 54 | 53 37 | syl | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> I : dom I -1-1-onto-> ( Edg ` G ) ) |
| 55 | simpr | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> M : E -1-1-onto-> D ) |
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| 56 | f1ocnvdm | |- ( ( M : E -1-1-onto-> D /\ ( J ` i ) e. D ) -> ( `' M ` ( J ` i ) ) e. E ) |
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| 57 | 55 48 56 | syl2an2r | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( `' M ` ( J ` i ) ) e. E ) |
| 58 | 57 3 | eleqtrdi | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( `' M ` ( J ` i ) ) e. ( Edg ` G ) ) |
| 59 | f1ocnvfv2 | |- ( ( I : dom I -1-1-onto-> ( Edg ` G ) /\ ( `' M ` ( J ` i ) ) e. ( Edg ` G ) ) -> ( I ` ( `' I ` ( `' M ` ( J ` i ) ) ) ) = ( `' M ` ( J ` i ) ) ) |
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| 60 | 54 58 59 | syl2an2r | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( I ` ( `' I ` ( `' M ` ( J ` i ) ) ) ) = ( `' M ` ( J ` i ) ) ) |
| 61 | 60 | fveq2d | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( M ` ( I ` ( `' I ` ( `' M ` ( J ` i ) ) ) ) ) = ( M ` ( `' M ` ( J ` i ) ) ) ) |
| 62 | f1ocnvfv2 | |- ( ( M : E -1-1-onto-> D /\ ( J ` i ) e. D ) -> ( M ` ( `' M ` ( J ` i ) ) ) = ( J ` i ) ) |
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| 63 | 55 48 62 | syl2an2r | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( M ` ( `' M ` ( J ` i ) ) ) = ( J ` i ) ) |
| 64 | 61 63 | eqtr2d | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( J ` i ) = ( M ` ( I ` ( `' I ` ( `' M ` ( J ` i ) ) ) ) ) ) |
| 65 | 36 52 64 | rspcedvdw | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> E. x e. dom I ( J ` i ) = ( M ` ( I ` x ) ) ) |
| 66 | eqtr2 | |- ( ( ( J ` i ) = ( M ` ( I ` x ) ) /\ ( J ` i ) = ( M ` ( I ` y ) ) ) -> ( M ` ( I ` x ) ) = ( M ` ( I ` y ) ) ) |
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| 67 | f1of1 | |- ( M : E -1-1-onto-> D -> M : E -1-1-> D ) |
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| 68 | 67 | adantl | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> M : E -1-1-> D ) |
| 69 | 68 | adantr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> M : E -1-1-> D ) |
| 70 | 5 | iedgedg | |- ( ( Fun I /\ x e. dom I ) -> ( I ` x ) e. ( Edg ` G ) ) |
| 71 | 17 70 | sylan | |- ( ( G e. USPGraph /\ x e. dom I ) -> ( I ` x ) e. ( Edg ` G ) ) |
| 72 | 71 3 | eleqtrrdi | |- ( ( G e. USPGraph /\ x e. dom I ) -> ( I ` x ) e. E ) |
| 73 | 72 | ex | |- ( G e. USPGraph -> ( x e. dom I -> ( I ` x ) e. E ) ) |
| 74 | 5 | iedgedg | |- ( ( Fun I /\ y e. dom I ) -> ( I ` y ) e. ( Edg ` G ) ) |
| 75 | 17 74 | sylan | |- ( ( G e. USPGraph /\ y e. dom I ) -> ( I ` y ) e. ( Edg ` G ) ) |
| 76 | 75 3 | eleqtrrdi | |- ( ( G e. USPGraph /\ y e. dom I ) -> ( I ` y ) e. E ) |
| 77 | 76 | ex | |- ( G e. USPGraph -> ( y e. dom I -> ( I ` y ) e. E ) ) |
| 78 | 73 77 | anim12d | |- ( G e. USPGraph -> ( ( x e. dom I /\ y e. dom I ) -> ( ( I ` x ) e. E /\ ( I ` y ) e. E ) ) ) |
| 79 | 78 | 3ad2ant1 | |- ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) -> ( ( x e. dom I /\ y e. dom I ) -> ( ( I ` x ) e. E /\ ( I ` y ) e. E ) ) ) |
| 80 | 79 | ad3antrrr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( ( x e. dom I /\ y e. dom I ) -> ( ( I ` x ) e. E /\ ( I ` y ) e. E ) ) ) |
| 81 | 80 | imp | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ ( x e. dom I /\ y e. dom I ) ) -> ( ( I ` x ) e. E /\ ( I ` y ) e. E ) ) |
| 82 | f1fveq | |- ( ( M : E -1-1-> D /\ ( ( I ` x ) e. E /\ ( I ` y ) e. E ) ) -> ( ( M ` ( I ` x ) ) = ( M ` ( I ` y ) ) <-> ( I ` x ) = ( I ` y ) ) ) |
|
| 83 | 69 81 82 | syl2an2r | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ ( x e. dom I /\ y e. dom I ) ) -> ( ( M ` ( I ` x ) ) = ( M ` ( I ` y ) ) <-> ( I ` x ) = ( I ` y ) ) ) |
| 84 | f1of1 | |- ( I : dom I -1-1-onto-> ( Edg ` G ) -> I : dom I -1-1-> ( Edg ` G ) ) |
|
| 85 | 37 84 | syl | |- ( G e. USPGraph -> I : dom I -1-1-> ( Edg ` G ) ) |
| 86 | 85 | 3ad2ant1 | |- ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) -> I : dom I -1-1-> ( Edg ` G ) ) |
| 87 | 86 | ad3antrrr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> I : dom I -1-1-> ( Edg ` G ) ) |
| 88 | f1veqaeq | |- ( ( I : dom I -1-1-> ( Edg ` G ) /\ ( x e. dom I /\ y e. dom I ) ) -> ( ( I ` x ) = ( I ` y ) -> x = y ) ) |
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| 89 | 87 88 | sylan | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ ( x e. dom I /\ y e. dom I ) ) -> ( ( I ` x ) = ( I ` y ) -> x = y ) ) |
| 90 | 83 89 | sylbid | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ ( x e. dom I /\ y e. dom I ) ) -> ( ( M ` ( I ` x ) ) = ( M ` ( I ` y ) ) -> x = y ) ) |
| 91 | 66 90 | syl5 | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ ( x e. dom I /\ y e. dom I ) ) -> ( ( ( J ` i ) = ( M ` ( I ` x ) ) /\ ( J ` i ) = ( M ` ( I ` y ) ) ) -> x = y ) ) |
| 92 | 91 | ralrimivva | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> A. x e. dom I A. y e. dom I ( ( ( J ` i ) = ( M ` ( I ` x ) ) /\ ( J ` i ) = ( M ` ( I ` y ) ) ) -> x = y ) ) |
| 93 | 2fveq3 | |- ( x = y -> ( M ` ( I ` x ) ) = ( M ` ( I ` y ) ) ) |
|
| 94 | 93 | eqeq2d | |- ( x = y -> ( ( J ` i ) = ( M ` ( I ` x ) ) <-> ( J ` i ) = ( M ` ( I ` y ) ) ) ) |
| 95 | 94 | reu4 | |- ( E! x e. dom I ( J ` i ) = ( M ` ( I ` x ) ) <-> ( E. x e. dom I ( J ` i ) = ( M ` ( I ` x ) ) /\ A. x e. dom I A. y e. dom I ( ( ( J ` i ) = ( M ` ( I ` x ) ) /\ ( J ` i ) = ( M ` ( I ` y ) ) ) -> x = y ) ) ) |
| 96 | 65 92 95 | sylanbrc | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> E! x e. dom I ( J ` i ) = ( M ` ( I ` x ) ) ) |
| 97 | 10 | ad3antrrr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> J : dom J -1-1-onto-> ( Edg ` H ) ) |
| 98 | 13 | ad2antrr | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> M : E --> D ) |
| 99 | 27 | ad3antrrr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> I : dom I --> E ) |
| 100 | 99 | ffvelcdmda | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> ( I ` x ) e. E ) |
| 101 | 98 100 | ffvelcdmd | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> ( M ` ( I ` x ) ) e. D ) |
| 102 | 101 4 | eleqtrdi | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> ( M ` ( I ` x ) ) e. ( Edg ` H ) ) |
| 103 | f1ocnvfv2 | |- ( ( J : dom J -1-1-onto-> ( Edg ` H ) /\ ( M ` ( I ` x ) ) e. ( Edg ` H ) ) -> ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) = ( M ` ( I ` x ) ) ) |
|
| 104 | 97 102 103 | syl2an2r | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) = ( M ` ( I ` x ) ) ) |
| 105 | 104 | eqeq2d | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> ( ( J ` i ) = ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) <-> ( J ` i ) = ( M ` ( I ` x ) ) ) ) |
| 106 | 105 | reubidva | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( E! x e. dom I ( J ` i ) = ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) <-> E! x e. dom I ( J ` i ) = ( M ` ( I ` x ) ) ) ) |
| 107 | 96 106 | mpbird | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> E! x e. dom I ( J ` i ) = ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) ) |
| 108 | 11 | ad2antrr | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> J : dom J -1-1-onto-> ( Edg ` H ) ) |
| 109 | f1of1 | |- ( J : dom J -1-1-onto-> ( Edg ` H ) -> J : dom J -1-1-> ( Edg ` H ) ) |
|
| 110 | 108 109 | syl | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> J : dom J -1-1-> ( Edg ` H ) ) |
| 111 | simplr | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> i e. dom J ) |
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| 112 | 33 | adantlr | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> ( `' J ` ( M ` ( I ` x ) ) ) e. dom J ) |
| 113 | f1fveq | |- ( ( J : dom J -1-1-> ( Edg ` H ) /\ ( i e. dom J /\ ( `' J ` ( M ` ( I ` x ) ) ) e. dom J ) ) -> ( ( J ` i ) = ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) <-> i = ( `' J ` ( M ` ( I ` x ) ) ) ) ) |
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| 114 | 113 | bicomd | |- ( ( J : dom J -1-1-> ( Edg ` H ) /\ ( i e. dom J /\ ( `' J ` ( M ` ( I ` x ) ) ) e. dom J ) ) -> ( i = ( `' J ` ( M ` ( I ` x ) ) ) <-> ( J ` i ) = ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) ) ) |
| 115 | 110 111 112 114 | syl12anc | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) /\ x e. dom I ) -> ( i = ( `' J ` ( M ` ( I ` x ) ) ) <-> ( J ` i ) = ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) ) ) |
| 116 | 115 | reubidva | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> ( E! x e. dom I i = ( `' J ` ( M ` ( I ` x ) ) ) <-> E! x e. dom I ( J ` i ) = ( J ` ( `' J ` ( M ` ( I ` x ) ) ) ) ) ) |
| 117 | 107 116 | mpbird | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom J ) -> E! x e. dom I i = ( `' J ` ( M ` ( I ` x ) ) ) ) |
| 118 | 117 | ralrimiva | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> A. i e. dom J E! x e. dom I i = ( `' J ` ( M ` ( I ` x ) ) ) ) |
| 119 | 8 | f1ompt | |- ( N : dom I -1-1-onto-> dom J <-> ( A. x e. dom I ( `' J ` ( M ` ( I ` x ) ) ) e. dom J /\ A. i e. dom J E! x e. dom I i = ( `' J ` ( M ` ( I ` x ) ) ) ) ) |
| 120 | 34 118 119 | sylanbrc | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> N : dom I -1-1-onto-> dom J ) |
| 121 | 2fveq3 | |- ( x = i -> ( M ` ( I ` x ) ) = ( M ` ( I ` i ) ) ) |
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| 122 | 121 | fveq2d | |- ( x = i -> ( `' J ` ( M ` ( I ` x ) ) ) = ( `' J ` ( M ` ( I ` i ) ) ) ) |
| 123 | 122 | adantl | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) /\ x = i ) -> ( `' J ` ( M ` ( I ` x ) ) ) = ( `' J ` ( M ` ( I ` i ) ) ) ) |
| 124 | simpr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> i e. dom I ) |
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| 125 | fvexd | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( `' J ` ( M ` ( I ` i ) ) ) e. _V ) |
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| 126 | 8 123 124 125 | fvmptd2 | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( N ` i ) = ( `' J ` ( M ` ( I ` i ) ) ) ) |
| 127 | 126 | fveq2d | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( J ` ( N ` i ) ) = ( J ` ( `' J ` ( M ` ( I ` i ) ) ) ) ) |
| 128 | 13 | adantr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> M : E --> D ) |
| 129 | 28 | ffvelcdmda | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( I ` i ) e. E ) |
| 130 | 128 129 | ffvelcdmd | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( M ` ( I ` i ) ) e. D ) |
| 131 | 130 4 | eleqtrdi | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( M ` ( I ` i ) ) e. ( Edg ` H ) ) |
| 132 | f1ocnvfv2 | |- ( ( J : dom J -1-1-onto-> ( Edg ` H ) /\ ( M ` ( I ` i ) ) e. ( Edg ` H ) ) -> ( J ` ( `' J ` ( M ` ( I ` i ) ) ) ) = ( M ` ( I ` i ) ) ) |
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| 133 | 11 131 132 | syl2an2r | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( J ` ( `' J ` ( M ` ( I ` i ) ) ) ) = ( M ` ( I ` i ) ) ) |
| 134 | simpr | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) /\ x = ( I ` i ) ) -> x = ( I ` i ) ) |
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| 135 | 134 | imaeq2d | |- ( ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) /\ x = ( I ` i ) ) -> ( F " x ) = ( F " ( I ` i ) ) ) |
| 136 | simp3 | |- ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) -> F e. X ) |
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| 137 | 136 | ad3antrrr | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> F e. X ) |
| 138 | 137 | imaexd | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( F " ( I ` i ) ) e. _V ) |
| 139 | 7 135 129 138 | fvmptd2 | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( M ` ( I ` i ) ) = ( F " ( I ` i ) ) ) |
| 140 | 127 133 139 | 3eqtrd | |- ( ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) /\ i e. dom I ) -> ( J ` ( N ` i ) ) = ( F " ( I ` i ) ) ) |
| 141 | 140 | ralrimiva | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> A. i e. dom I ( J ` ( N ` i ) ) = ( F " ( I ` i ) ) ) |
| 142 | 120 141 | jca | |- ( ( ( ( G e. USPGraph /\ H e. USPGraph /\ F e. X ) /\ F : V -1-1-onto-> W ) /\ M : E -1-1-onto-> D ) -> ( N : dom I -1-1-onto-> dom J /\ A. i e. dom I ( J ` ( N ` i ) ) = ( F " ( I ` i ) ) ) ) |