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Mirrors > Home > ILE Home > Th. List > isotr | Unicode version |
Description: Composition (transitive) law for isomorphism. Proposition 6.30(3) of [TakeutiZaring] p. 33. (Contributed by NM, 27-Apr-2004.) (Proof shortened by Mario Carneiro, 5-Dec-2016.) |
Ref | Expression |
---|---|
isotr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 108 | . . . 4 | |
2 | simpl 108 | . . . 4 | |
3 | f1oco 5455 | . . . 4 | |
4 | 1, 2, 3 | syl2anr 288 | . . 3 |
5 | f1of 5432 | . . . . . . . . . . . 12 | |
6 | 5 | ad2antrr 480 | . . . . . . . . . . 11 |
7 | simprl 521 | . . . . . . . . . . 11 | |
8 | 6, 7 | ffvelrnd 5621 | . . . . . . . . . 10 |
9 | simprr 522 | . . . . . . . . . . 11 | |
10 | 6, 9 | ffvelrnd 5621 | . . . . . . . . . 10 |
11 | simplrr 526 | . . . . . . . . . 10 | |
12 | breq1 3985 | . . . . . . . . . . . 12 | |
13 | fveq2 5486 | . . . . . . . . . . . . 13 | |
14 | 13 | breq1d 3992 | . . . . . . . . . . . 12 |
15 | 12, 14 | bibi12d 234 | . . . . . . . . . . 11 |
16 | breq2 3986 | . . . . . . . . . . . 12 | |
17 | fveq2 5486 | . . . . . . . . . . . . 13 | |
18 | 17 | breq2d 3994 | . . . . . . . . . . . 12 |
19 | 16, 18 | bibi12d 234 | . . . . . . . . . . 11 |
20 | 15, 19 | rspc2va 2844 | . . . . . . . . . 10 |
21 | 8, 10, 11, 20 | syl21anc 1227 | . . . . . . . . 9 |
22 | fvco3 5557 | . . . . . . . . . . 11 | |
23 | 6, 7, 22 | syl2anc 409 | . . . . . . . . . 10 |
24 | fvco3 5557 | . . . . . . . . . . 11 | |
25 | 6, 9, 24 | syl2anc 409 | . . . . . . . . . 10 |
26 | 23, 25 | breq12d 3995 | . . . . . . . . 9 |
27 | 21, 26 | bitr4d 190 | . . . . . . . 8 |
28 | 27 | bibi2d 231 | . . . . . . 7 |
29 | 28 | 2ralbidva 2488 | . . . . . 6 |
30 | 29 | biimpd 143 | . . . . 5 |
31 | 30 | impancom 258 | . . . 4 |
32 | 31 | imp 123 | . . 3 |
33 | 4, 32 | jca 304 | . 2 |
34 | df-isom 5197 | . . 3 | |
35 | df-isom 5197 | . . 3 | |
36 | 34, 35 | anbi12i 456 | . 2 |
37 | df-isom 5197 | . 2 | |
38 | 33, 36, 37 | 3imtr4i 200 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1343 wcel 2136 wral 2444 class class class wbr 3982 ccom 4608 wf 5184 wf1o 5187 cfv 5188 wiso 5189 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-14 2139 ax-ext 2147 ax-sep 4100 ax-pow 4153 ax-pr 4187 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-eu 2017 df-mo 2018 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-v 2728 df-sbc 2952 df-un 3120 df-in 3122 df-ss 3129 df-pw 3561 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-br 3983 df-opab 4044 df-id 4271 df-xp 4610 df-rel 4611 df-cnv 4612 df-co 4613 df-dm 4614 df-rn 4615 df-res 4616 df-ima 4617 df-iota 5153 df-fun 5190 df-fn 5191 df-f 5192 df-f1 5193 df-fo 5194 df-f1o 5195 df-fv 5196 df-isom 5197 |
This theorem is referenced by: (None) |
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