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| Mirrors > Home > ILE Home > Th. List > isoini2 | Unicode version | ||
| Description: Isomorphisms are isomorphisms on their initial segments. (Contributed by Mario Carneiro, 29-Mar-2014.) |
| Ref | Expression |
|---|---|
| isoini2.1 |
|
| isoini2.2 |
|
| Ref | Expression |
|---|---|
| isoini2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isof1o 6006 |
. . . . . 6
| |
| 2 | f1of1 5636 |
. . . . . 6
| |
| 3 | 1, 2 | syl 14 |
. . . . 5
|
| 4 | 3 | adantr 276 |
. . . 4
|
| 5 | isoini2.1 |
. . . . 5
| |
| 6 | inss1 3451 |
. . . . 5
| |
| 7 | 5, 6 | eqsstri 3280 |
. . . 4
|
| 8 | f1ores 5652 |
. . . 4
| |
| 9 | 4, 7, 8 | sylancl 417 |
. . 3
|
| 10 | isoini 6017 |
. . . . 5
| |
| 11 | 5 | imaeq2i 5122 |
. . . . 5
|
| 12 | isoini2.2 |
. . . . 5
| |
| 13 | 10, 11, 12 | 3eqtr4g 2296 |
. . . 4
|
| 14 | f1oeq3 5627 |
. . . 4
| |
| 15 | 13, 14 | syl 14 |
. . 3
|
| 16 | 9, 15 | mpbid 147 |
. 2
|
| 17 | df-isom 5384 |
. . . . . . 7
| |
| 18 | 17 | simprbi 275 |
. . . . . 6
|
| 19 | 18 | adantr 276 |
. . . . 5
|
| 20 | ssralv 3312 |
. . . . . 6
| |
| 21 | 20 | ralimdv 2618 |
. . . . 5
|
| 22 | 7, 19, 21 | mpsyl 65 |
. . . 4
|
| 23 | ssralv 3312 |
. . . 4
| |
| 24 | 7, 22, 23 | mpsyl 65 |
. . 3
|
| 25 | fvres 5717 |
. . . . . . 7
| |
| 26 | fvres 5717 |
. . . . . . 7
| |
| 27 | 25, 26 | breqan12d 4144 |
. . . . . 6
|
| 28 | 27 | bibi2d 232 |
. . . . 5
|
| 29 | 28 | ralbidva 2546 |
. . . 4
|
| 30 | 29 | ralbiia 2564 |
. . 3
|
| 31 | 24, 30 | sylibr 134 |
. 2
|
| 32 | df-isom 5384 |
. 2
| |
| 33 | 16, 31, 32 | sylanbrc 421 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4247 ax-pow 4309 ax-pr 4344 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-opab 4191 df-mpt 4192 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-res 4784 df-ima 4785 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-f1 5380 df-fo 5381 df-f1o 5382 df-fv 5383 df-isom 5384 |
| This theorem is referenced by: (None) |
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