| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 5935 |
. . . 4
| |
| 2 | isotilem 7173 |
. . . 4
| |
| 3 | 1, 2 | syl 14 |
. . 3
|
| 4 | isotilem 7173 |
. . 3
| |
| 5 | 3, 4 | impbid 129 |
. 2
|
| 6 | equequ1 1758 |
. . . 4
| |
| 7 | breq1 4086 |
. . . . . 6
| |
| 8 | 7 | notbid 671 |
. . . . 5
|
| 9 | breq2 4087 |
. . . . . 6
| |
| 10 | 9 | notbid 671 |
. . . . 5
|
| 11 | 8, 10 | anbi12d 473 |
. . . 4
|
| 12 | 6, 11 | bibi12d 235 |
. . 3
|
| 13 | equequ2 1759 |
. . . 4
| |
| 14 | breq2 4087 |
. . . . . 6
| |
| 15 | 14 | notbid 671 |
. . . . 5
|
| 16 | breq1 4086 |
. . . . . 6
| |
| 17 | 16 | notbid 671 |
. . . . 5
|
| 18 | 15, 17 | anbi12d 473 |
. . . 4
|
| 19 | 13, 18 | bibi12d 235 |
. . 3
|
| 20 | 12, 19 | cbvral2v 2778 |
. 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 617 ax-in2 618 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4202 ax-pow 4258 ax-pr 4293 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2801 df-sbc 3029 df-un 3201 df-in 3203 df-ss 3210 df-pw 3651 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-opab 4146 df-id 4384 df-xp 4725 df-rel 4726 df-cnv 4727 df-co 4728 df-dm 4729 df-rn 4730 df-res 4731 df-ima 4732 df-iota 5278 df-fun 5320 df-fn 5321 df-f 5322 df-f1 5323 df-fo 5324 df-f1o 5325 df-fv 5326 df-isom 5327 |
| This theorem is referenced by: supisoti 7177 |
| Copyright terms: Public domain | W3C validator |