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| Mirrors > Home > ILE Home > Th. List > isoti | Unicode version | ||
| Description: An isomorphism preserves tightness. (Contributed by Jim Kingdon, 26-Nov-2021.) |
| Ref | Expression |
|---|---|
| isoti |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | isocnv 5962 |
. . . 4
| |
| 2 | isotilem 7265 |
. . . 4
| |
| 3 | 1, 2 | syl 14 |
. . 3
|
| 4 | isotilem 7265 |
. . 3
| |
| 5 | 3, 4 | impbid 129 |
. 2
|
| 6 | equequ1 1760 |
. . . 4
| |
| 7 | breq1 4096 |
. . . . . 6
| |
| 8 | 7 | notbid 673 |
. . . . 5
|
| 9 | breq2 4097 |
. . . . . 6
| |
| 10 | 9 | notbid 673 |
. . . . 5
|
| 11 | 8, 10 | anbi12d 473 |
. . . 4
|
| 12 | 6, 11 | bibi12d 235 |
. . 3
|
| 13 | equequ2 1761 |
. . . 4
| |
| 14 | breq2 4097 |
. . . . . 6
| |
| 15 | 14 | notbid 673 |
. . . . 5
|
| 16 | breq1 4096 |
. . . . . 6
| |
| 17 | 16 | notbid 673 |
. . . . 5
|
| 18 | 15, 17 | anbi12d 473 |
. . . 4
|
| 19 | 13, 18 | bibi12d 235 |
. . 3
|
| 20 | 12, 19 | cbvral2v 2781 |
. 2
|
| 21 | 5, 20 | bitrdi 196 |
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-in1 619 ax-in2 620 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 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-sbc 3033 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-opab 4156 df-id 4396 df-xp 4737 df-rel 4738 df-cnv 4739 df-co 4740 df-dm 4741 df-rn 4742 df-res 4743 df-ima 4744 df-iota 5293 df-fun 5335 df-fn 5336 df-f 5337 df-f1 5338 df-fo 5339 df-f1o 5340 df-fv 5341 df-isom 5342 |
| This theorem is referenced by: supisoti 7269 |
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