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Description: Conditions for a concatenation to be injective. (Contributed by Thierry Arnoux, 11-Dec-2023)
| Ref | Expression | ||
|---|---|---|---|
| Hypotheses | ccatf1.s | |- ( ph -> S e. V ) |
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| ccatf1.a | |- ( ph -> A e. Word S ) |
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| ccatf1.b | |- ( ph -> B e. Word S ) |
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| ccatf1.1 | |- ( ph -> A : dom A -1-1-> S ) |
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| ccatf1.2 | |- ( ph -> B : dom B -1-1-> S ) |
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| ccatf1.3 | |- ( ph -> ( ran A i^i ran B ) = (/) ) |
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| Assertion | ccatf1 | |- ( ph -> ( A ++ B ) : dom ( A ++ B ) -1-1-> S ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ccatf1.s | |- ( ph -> S e. V ) |
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| 2 | ccatf1.a | |- ( ph -> A e. Word S ) |
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| 3 | ccatf1.b | |- ( ph -> B e. Word S ) |
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| 4 | ccatf1.1 | |- ( ph -> A : dom A -1-1-> S ) |
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| 5 | ccatf1.2 | |- ( ph -> B : dom B -1-1-> S ) |
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| 6 | ccatf1.3 | |- ( ph -> ( ran A i^i ran B ) = (/) ) |
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| 7 | ccatcl | |- ( ( A e. Word S /\ B e. Word S ) -> ( A ++ B ) e. Word S ) |
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| 8 | 2 3 7 | syl2anc | |- ( ph -> ( A ++ B ) e. Word S ) |
| 9 | wrdf | |- ( ( A ++ B ) e. Word S -> ( A ++ B ) : ( 0 ..^ ( # ` ( A ++ B ) ) ) --> S ) |
|
| 10 | 8 9 | syl | |- ( ph -> ( A ++ B ) : ( 0 ..^ ( # ` ( A ++ B ) ) ) --> S ) |
| 11 | 10 | ffdmd | |- ( ph -> ( A ++ B ) : dom ( A ++ B ) --> S ) |
| 12 | simpllr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) |
|
| 13 | id | |- ( i e. ( 0 ..^ ( # ` A ) ) -> i e. ( 0 ..^ ( # ` A ) ) ) |
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| 14 | ccatval1 | |- ( ( A e. Word S /\ B e. Word S /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` i ) = ( A ` i ) ) |
|
| 15 | 2 3 13 14 | syl2an3an | |- ( ( ph /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` i ) = ( A ` i ) ) |
| 16 | 15 | ad4ant13 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` i ) = ( A ` i ) ) |
| 17 | id | |- ( j e. ( 0 ..^ ( # ` A ) ) -> j e. ( 0 ..^ ( # ` A ) ) ) |
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| 18 | ccatval1 | |- ( ( A e. Word S /\ B e. Word S /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` j ) = ( A ` j ) ) |
|
| 19 | 2 3 17 18 | syl2an3an | |- ( ( ph /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` j ) = ( A ` j ) ) |
| 20 | 19 | ad4ant14 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` j ) = ( A ` j ) ) |
| 21 | 12 16 20 | 3eqtr3d | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` i ) = ( A ` j ) ) |
| 22 | wrddm | |- ( A e. Word S -> dom A = ( 0 ..^ ( # ` A ) ) ) |
|
| 23 | 2 22 | syl | |- ( ph -> dom A = ( 0 ..^ ( # ` A ) ) ) |
| 24 | f1eq2 | |- ( dom A = ( 0 ..^ ( # ` A ) ) -> ( A : dom A -1-1-> S <-> A : ( 0 ..^ ( # ` A ) ) -1-1-> S ) ) |
|
| 25 | 24 | biimpa | |- ( ( dom A = ( 0 ..^ ( # ` A ) ) /\ A : dom A -1-1-> S ) -> A : ( 0 ..^ ( # ` A ) ) -1-1-> S ) |
| 26 | 23 4 25 | syl2anc | |- ( ph -> A : ( 0 ..^ ( # ` A ) ) -1-1-> S ) |
| 27 | dff13 | |- ( A : ( 0 ..^ ( # ` A ) ) -1-1-> S <-> ( A : ( 0 ..^ ( # ` A ) ) --> S /\ A. i e. ( 0 ..^ ( # ` A ) ) A. j e. ( 0 ..^ ( # ` A ) ) ( ( A ` i ) = ( A ` j ) -> i = j ) ) ) |
|
| 28 | 27 | simprbi | |- ( A : ( 0 ..^ ( # ` A ) ) -1-1-> S -> A. i e. ( 0 ..^ ( # ` A ) ) A. j e. ( 0 ..^ ( # ` A ) ) ( ( A ` i ) = ( A ` j ) -> i = j ) ) |
| 29 | 26 28 | syl | |- ( ph -> A. i e. ( 0 ..^ ( # ` A ) ) A. j e. ( 0 ..^ ( # ` A ) ) ( ( A ` i ) = ( A ` j ) -> i = j ) ) |
| 30 | 29 | r19.21bi | |- ( ( ph /\ i e. ( 0 ..^ ( # ` A ) ) ) -> A. j e. ( 0 ..^ ( # ` A ) ) ( ( A ` i ) = ( A ` j ) -> i = j ) ) |
| 31 | 30 | r19.21bi | |- ( ( ( ph /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ` i ) = ( A ` j ) -> i = j ) ) |
| 32 | 31 | adantllr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ` i ) = ( A ` j ) -> i = j ) ) |
| 33 | 21 32 | mpd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> i = j ) |
| 34 | 33 | ex | |- ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( j e. ( 0 ..^ ( # ` A ) ) -> i = j ) ) |
| 35 | 34 | adantllr | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( j e. ( 0 ..^ ( # ` A ) ) -> i = j ) ) |
| 36 | f1fun | |- ( A : dom A -1-1-> S -> Fun A ) |
|
| 37 | 4 36 | syl | |- ( ph -> Fun A ) |
| 38 | simpr | |- ( ( ph /\ i e. ( 0 ..^ ( # ` A ) ) ) -> i e. ( 0 ..^ ( # ` A ) ) ) |
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| 39 | 23 | adantr | |- ( ( ph /\ i e. ( 0 ..^ ( # ` A ) ) ) -> dom A = ( 0 ..^ ( # ` A ) ) ) |
| 40 | 38 39 | eleqtrrd | |- ( ( ph /\ i e. ( 0 ..^ ( # ` A ) ) ) -> i e. dom A ) |
| 41 | fvelrn | |- ( ( Fun A /\ i e. dom A ) -> ( A ` i ) e. ran A ) |
|
| 42 | 37 40 41 | syl2an2r | |- ( ( ph /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` i ) e. ran A ) |
| 43 | 42 | ad4ant13 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( A ` i ) e. ran A ) |
| 44 | simpllr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) |
|
| 45 | 15 | ad4ant13 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` i ) = ( A ` i ) ) |
| 46 | 2 | adantr | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> A e. Word S ) |
| 47 | 3 | adantr | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> B e. Word S ) |
| 48 | simpr | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) |
|
| 49 | ccatlen | |- ( ( A e. Word S /\ B e. Word S ) -> ( # ` ( A ++ B ) ) = ( ( # ` A ) + ( # ` B ) ) ) |
|
| 50 | 2 3 49 | syl2anc | |- ( ph -> ( # ` ( A ++ B ) ) = ( ( # ` A ) + ( # ` B ) ) ) |
| 51 | 50 | oveq2d | |- ( ph -> ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) = ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) ) |
| 52 | 51 | adantr | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) = ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) ) |
| 53 | 48 52 | eleqtrd | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> j e. ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) ) |
| 54 | ccatval2 | |- ( ( A e. Word S /\ B e. Word S /\ j e. ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) ) -> ( ( A ++ B ) ` j ) = ( B ` ( j - ( # ` A ) ) ) ) |
|
| 55 | 46 47 53 54 | syl3anc | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` j ) = ( B ` ( j - ( # ` A ) ) ) ) |
| 56 | 55 | ad4ant14 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` j ) = ( B ` ( j - ( # ` A ) ) ) ) |
| 57 | 44 45 56 | 3eqtr3d | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( A ` i ) = ( B ` ( j - ( # ` A ) ) ) ) |
| 58 | f1fun | |- ( B : dom B -1-1-> S -> Fun B ) |
|
| 59 | 5 58 | syl | |- ( ph -> Fun B ) |
| 60 | lencl | |- ( B e. Word S -> ( # ` B ) e. NN0 ) |
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| 61 | 3 60 | syl | |- ( ph -> ( # ` B ) e. NN0 ) |
| 62 | 61 | nn0zd | |- ( ph -> ( # ` B ) e. ZZ ) |
| 63 | 62 | adantr | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( # ` B ) e. ZZ ) |
| 64 | fzosubel3 | |- ( ( j e. ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) /\ ( # ` B ) e. ZZ ) -> ( j - ( # ` A ) ) e. ( 0 ..^ ( # ` B ) ) ) |
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| 65 | 53 63 64 | syl2anc | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j - ( # ` A ) ) e. ( 0 ..^ ( # ` B ) ) ) |
| 66 | wrddm | |- ( B e. Word S -> dom B = ( 0 ..^ ( # ` B ) ) ) |
|
| 67 | 3 66 | syl | |- ( ph -> dom B = ( 0 ..^ ( # ` B ) ) ) |
| 68 | 67 | adantr | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> dom B = ( 0 ..^ ( # ` B ) ) ) |
| 69 | 65 68 | eleqtrrd | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j - ( # ` A ) ) e. dom B ) |
| 70 | fvelrn | |- ( ( Fun B /\ ( j - ( # ` A ) ) e. dom B ) -> ( B ` ( j - ( # ` A ) ) ) e. ran B ) |
|
| 71 | 59 69 70 | syl2an2r | |- ( ( ph /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( B ` ( j - ( # ` A ) ) ) e. ran B ) |
| 72 | 71 | ad4ant14 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( B ` ( j - ( # ` A ) ) ) e. ran B ) |
| 73 | 57 72 | eqeltrd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( A ` i ) e. ran B ) |
| 74 | 43 73 | elind | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( A ` i ) e. ( ran A i^i ran B ) ) |
| 75 | 6 | ad3antrrr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ran A i^i ran B ) = (/) ) |
| 76 | 74 75 | eleqtrd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( A ` i ) e. (/) ) |
| 77 | noel | |- -. ( A ` i ) e. (/) |
|
| 78 | 77 | a1i | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> -. ( A ` i ) e. (/) ) |
| 79 | 76 78 | pm2.21dd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> i = j ) |
| 80 | 79 | ex | |- ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i = j ) ) |
| 81 | 80 | adantllr | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i = j ) ) |
| 82 | wrddm | |- ( ( A ++ B ) e. Word S -> dom ( A ++ B ) = ( 0 ..^ ( # ` ( A ++ B ) ) ) ) |
|
| 83 | 8 82 | syl | |- ( ph -> dom ( A ++ B ) = ( 0 ..^ ( # ` ( A ++ B ) ) ) ) |
| 84 | 83 | eleq2d | |- ( ph -> ( j e. dom ( A ++ B ) <-> j e. ( 0 ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 85 | 84 | biimpa | |- ( ( ph /\ j e. dom ( A ++ B ) ) -> j e. ( 0 ..^ ( # ` ( A ++ B ) ) ) ) |
| 86 | lencl | |- ( A e. Word S -> ( # ` A ) e. NN0 ) |
|
| 87 | 2 86 | syl | |- ( ph -> ( # ` A ) e. NN0 ) |
| 88 | 87 | nn0zd | |- ( ph -> ( # ` A ) e. ZZ ) |
| 89 | 88 | adantr | |- ( ( ph /\ j e. dom ( A ++ B ) ) -> ( # ` A ) e. ZZ ) |
| 90 | fzospliti | |- ( ( j e. ( 0 ..^ ( # ` ( A ++ B ) ) ) /\ ( # ` A ) e. ZZ ) -> ( j e. ( 0 ..^ ( # ` A ) ) \/ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
|
| 91 | 85 89 90 | syl2anc | |- ( ( ph /\ j e. dom ( A ++ B ) ) -> ( j e. ( 0 ..^ ( # ` A ) ) \/ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 92 | 91 | ad2antrr | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) -> ( j e. ( 0 ..^ ( # ` A ) ) \/ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 93 | 35 81 92 | mpjaod | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( 0 ..^ ( # ` A ) ) ) -> i = j ) |
| 94 | 93 | ex | |- ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) -> ( i e. ( 0 ..^ ( # ` A ) ) -> i = j ) ) |
| 95 | 94 | adantlrl | |- ( ( ( ph /\ ( i e. dom ( A ++ B ) /\ j e. dom ( A ++ B ) ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) -> ( i e. ( 0 ..^ ( # ` A ) ) -> i = j ) ) |
| 96 | simpr | |- ( ( ph /\ j e. ( 0 ..^ ( # ` A ) ) ) -> j e. ( 0 ..^ ( # ` A ) ) ) |
|
| 97 | 23 | adantr | |- ( ( ph /\ j e. ( 0 ..^ ( # ` A ) ) ) -> dom A = ( 0 ..^ ( # ` A ) ) ) |
| 98 | 96 97 | eleqtrrd | |- ( ( ph /\ j e. ( 0 ..^ ( # ` A ) ) ) -> j e. dom A ) |
| 99 | fvelrn | |- ( ( Fun A /\ j e. dom A ) -> ( A ` j ) e. ran A ) |
|
| 100 | 37 98 99 | syl2an2r | |- ( ( ph /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` j ) e. ran A ) |
| 101 | 100 | ad4ant14 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` j ) e. ran A ) |
| 102 | simpllr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) |
|
| 103 | 2 | adantr | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> A e. Word S ) |
| 104 | 3 | adantr | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> B e. Word S ) |
| 105 | simpr | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) |
|
| 106 | 51 | adantr | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) = ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) ) |
| 107 | 105 106 | eleqtrd | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> i e. ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) ) |
| 108 | ccatval2 | |- ( ( A e. Word S /\ B e. Word S /\ i e. ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) ) -> ( ( A ++ B ) ` i ) = ( B ` ( i - ( # ` A ) ) ) ) |
|
| 109 | 103 104 107 108 | syl3anc | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` i ) = ( B ` ( i - ( # ` A ) ) ) ) |
| 110 | 109 | ad4ant13 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` i ) = ( B ` ( i - ( # ` A ) ) ) ) |
| 111 | 19 | ad4ant14 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ( A ++ B ) ` j ) = ( A ` j ) ) |
| 112 | 102 110 111 | 3eqtr3rd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` j ) = ( B ` ( i - ( # ` A ) ) ) ) |
| 113 | 62 | adantr | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( # ` B ) e. ZZ ) |
| 114 | fzosubel3 | |- ( ( i e. ( ( # ` A ) ..^ ( ( # ` A ) + ( # ` B ) ) ) /\ ( # ` B ) e. ZZ ) -> ( i - ( # ` A ) ) e. ( 0 ..^ ( # ` B ) ) ) |
|
| 115 | 107 113 114 | syl2anc | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( i - ( # ` A ) ) e. ( 0 ..^ ( # ` B ) ) ) |
| 116 | 67 | adantr | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> dom B = ( 0 ..^ ( # ` B ) ) ) |
| 117 | 115 116 | eleqtrrd | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( i - ( # ` A ) ) e. dom B ) |
| 118 | fvelrn | |- ( ( Fun B /\ ( i - ( # ` A ) ) e. dom B ) -> ( B ` ( i - ( # ` A ) ) ) e. ran B ) |
|
| 119 | 59 117 118 | syl2an2r | |- ( ( ph /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( B ` ( i - ( # ` A ) ) ) e. ran B ) |
| 120 | 119 | ad4ant13 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( B ` ( i - ( # ` A ) ) ) e. ran B ) |
| 121 | 112 120 | eqeltrd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` j ) e. ran B ) |
| 122 | 101 121 | elind | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` j ) e. ( ran A i^i ran B ) ) |
| 123 | 6 | ad3antrrr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( ran A i^i ran B ) = (/) ) |
| 124 | 122 123 | eleqtrd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> ( A ` j ) e. (/) ) |
| 125 | noel | |- -. ( A ` j ) e. (/) |
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| 126 | 125 | a1i | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> -. ( A ` j ) e. (/) ) |
| 127 | 124 126 | pm2.21dd | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( 0 ..^ ( # ` A ) ) ) -> i = j ) |
| 128 | 127 | ex | |- ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j e. ( 0 ..^ ( # ` A ) ) -> i = j ) ) |
| 129 | 128 | adantllr | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j e. ( 0 ..^ ( # ` A ) ) -> i = j ) ) |
| 130 | elfzoelz | |- ( i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i e. ZZ ) |
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| 131 | 130 | zcnd | |- ( i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i e. CC ) |
| 132 | 131 | ad2antlr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> i e. CC ) |
| 133 | elfzoelz | |- ( j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> j e. ZZ ) |
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| 134 | 133 | zcnd | |- ( j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> j e. CC ) |
| 135 | 134 | adantl | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> j e. CC ) |
| 136 | 87 | nn0cnd | |- ( ph -> ( # ` A ) e. CC ) |
| 137 | 136 | ad3antrrr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( # ` A ) e. CC ) |
| 138 | 5 | ad3antrrr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> B : dom B -1-1-> S ) |
| 139 | 117 | ad4ant13 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( i - ( # ` A ) ) e. dom B ) |
| 140 | 69 | ad4ant14 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j - ( # ` A ) ) e. dom B ) |
| 141 | 139 140 | jca | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( i - ( # ` A ) ) e. dom B /\ ( j - ( # ` A ) ) e. dom B ) ) |
| 142 | simpllr | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) |
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| 143 | 109 | ad4ant13 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` i ) = ( B ` ( i - ( # ` A ) ) ) ) |
| 144 | 55 | ad4ant14 | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( ( A ++ B ) ` j ) = ( B ` ( j - ( # ` A ) ) ) ) |
| 145 | 142 143 144 | 3eqtr3d | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( B ` ( i - ( # ` A ) ) ) = ( B ` ( j - ( # ` A ) ) ) ) |
| 146 | f1veqaeq | |- ( ( B : dom B -1-1-> S /\ ( ( i - ( # ` A ) ) e. dom B /\ ( j - ( # ` A ) ) e. dom B ) ) -> ( ( B ` ( i - ( # ` A ) ) ) = ( B ` ( j - ( # ` A ) ) ) -> ( i - ( # ` A ) ) = ( j - ( # ` A ) ) ) ) |
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| 147 | 146 | imp | |- ( ( ( B : dom B -1-1-> S /\ ( ( i - ( # ` A ) ) e. dom B /\ ( j - ( # ` A ) ) e. dom B ) ) /\ ( B ` ( i - ( # ` A ) ) ) = ( B ` ( j - ( # ` A ) ) ) ) -> ( i - ( # ` A ) ) = ( j - ( # ` A ) ) ) |
| 148 | 138 141 145 147 | syl21anc | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( i - ( # ` A ) ) = ( j - ( # ` A ) ) ) |
| 149 | 132 135 137 148 | subcan2d | |- ( ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) /\ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> i = j ) |
| 150 | 149 | ex | |- ( ( ( ph /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i = j ) ) |
| 151 | 150 | adantllr | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i = j ) ) |
| 152 | 91 | ad2antrr | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> ( j e. ( 0 ..^ ( # ` A ) ) \/ j e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 153 | 129 151 152 | mpjaod | |- ( ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) /\ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) -> i = j ) |
| 154 | 153 | ex | |- ( ( ( ph /\ j e. dom ( A ++ B ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) -> ( i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i = j ) ) |
| 155 | 154 | adantlrl | |- ( ( ( ph /\ ( i e. dom ( A ++ B ) /\ j e. dom ( A ++ B ) ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) -> ( i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) -> i = j ) ) |
| 156 | 83 | eleq2d | |- ( ph -> ( i e. dom ( A ++ B ) <-> i e. ( 0 ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 157 | 156 | biimpa | |- ( ( ph /\ i e. dom ( A ++ B ) ) -> i e. ( 0 ..^ ( # ` ( A ++ B ) ) ) ) |
| 158 | 88 | adantr | |- ( ( ph /\ i e. dom ( A ++ B ) ) -> ( # ` A ) e. ZZ ) |
| 159 | fzospliti | |- ( ( i e. ( 0 ..^ ( # ` ( A ++ B ) ) ) /\ ( # ` A ) e. ZZ ) -> ( i e. ( 0 ..^ ( # ` A ) ) \/ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
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| 160 | 157 158 159 | syl2anc | |- ( ( ph /\ i e. dom ( A ++ B ) ) -> ( i e. ( 0 ..^ ( # ` A ) ) \/ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 161 | 160 | adantrr | |- ( ( ph /\ ( i e. dom ( A ++ B ) /\ j e. dom ( A ++ B ) ) ) -> ( i e. ( 0 ..^ ( # ` A ) ) \/ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 162 | 161 | adantr | |- ( ( ( ph /\ ( i e. dom ( A ++ B ) /\ j e. dom ( A ++ B ) ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) -> ( i e. ( 0 ..^ ( # ` A ) ) \/ i e. ( ( # ` A ) ..^ ( # ` ( A ++ B ) ) ) ) ) |
| 163 | 95 155 162 | mpjaod | |- ( ( ( ph /\ ( i e. dom ( A ++ B ) /\ j e. dom ( A ++ B ) ) ) /\ ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) ) -> i = j ) |
| 164 | 163 | ex | |- ( ( ph /\ ( i e. dom ( A ++ B ) /\ j e. dom ( A ++ B ) ) ) -> ( ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) -> i = j ) ) |
| 165 | 164 | ralrimivva | |- ( ph -> A. i e. dom ( A ++ B ) A. j e. dom ( A ++ B ) ( ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) -> i = j ) ) |
| 166 | dff13 | |- ( ( A ++ B ) : dom ( A ++ B ) -1-1-> S <-> ( ( A ++ B ) : dom ( A ++ B ) --> S /\ A. i e. dom ( A ++ B ) A. j e. dom ( A ++ B ) ( ( ( A ++ B ) ` i ) = ( ( A ++ B ) ` j ) -> i = j ) ) ) |
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| 167 | 11 165 166 | sylanbrc | |- ( ph -> ( A ++ B ) : dom ( A ++ B ) -1-1-> S ) |