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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 5982 |
. . . . . 6
| |
| 2 | f1of1 5615 |
. . . . . 6
| |
| 3 | 1, 2 | syl 14 |
. . . . 5
|
| 4 | 3 | adantr 276 |
. . . 4
|
| 5 | isoini2.1 |
. . . . 5
| |
| 6 | inss1 3443 |
. . . . 5
| |
| 7 | 5, 6 | eqsstri 3272 |
. . . 4
|
| 8 | f1ores 5631 |
. . . 4
| |
| 9 | 4, 7, 8 | sylancl 413 |
. . 3
|
| 10 | isoini 5993 |
. . . . 5
| |
| 11 | 5 | imaeq2i 5101 |
. . . . 5
|
| 12 | isoini2.2 |
. . . . 5
| |
| 13 | 10, 11, 12 | 3eqtr4g 2292 |
. . . 4
|
| 14 | f1oeq3 5606 |
. . . 4
| |
| 15 | 13, 14 | syl 14 |
. . 3
|
| 16 | 9, 15 | mpbid 147 |
. 2
|
| 17 | df-isom 5363 |
. . . . . . 7
| |
| 18 | 17 | simprbi 275 |
. . . . . 6
|
| 19 | 18 | adantr 276 |
. . . . 5
|
| 20 | ssralv 3304 |
. . . . . 6
| |
| 21 | 20 | ralimdv 2612 |
. . . . 5
|
| 22 | 7, 19, 21 | mpsyl 65 |
. . . 4
|
| 23 | ssralv 3304 |
. . . 4
| |
| 24 | 7, 22, 23 | mpsyl 65 |
. . 3
|
| 25 | fvres 5696 |
. . . . . . 7
| |
| 26 | fvres 5696 |
. . . . . . 7
| |
| 27 | 25, 26 | breqan12d 4127 |
. . . . . 6
|
| 28 | 27 | bibi2d 232 |
. . . . 5
|
| 29 | 28 | ralbidva 2540 |
. . . 4
|
| 30 | 29 | ralbiia 2558 |
. . 3
|
| 31 | 24, 30 | sylibr 134 |
. 2
|
| 32 | df-isom 5363 |
. 2
| |
| 33 | 16, 31, 32 | sylanbrc 417 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-sbc 3045 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-mpt 4175 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-res 4763 df-ima 4764 df-iota 5314 df-fun 5356 df-fn 5357 df-f 5358 df-f1 5359 df-fo 5360 df-f1o 5361 df-fv 5362 df-isom 5363 |
| This theorem is referenced by: (None) |
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