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| Mirrors > Home > ILE Home > Th. List > tapeq2 | Unicode version | ||
| Description: Equality theorem for tight apartness predicate. (Contributed by Jim Kingdon, 15-Feb-2025.) |
| Ref | Expression |
|---|---|
| tapeq2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xpeq12 4788 |
. . . . 5
| |
| 2 | 1 | anidms 401 |
. . . 4
|
| 3 | 2 | sseq2d 3278 |
. . 3
|
| 4 | raleq 2749 |
. . . 4
| |
| 5 | raleq 2749 |
. . . . 5
| |
| 6 | 5 | raleqbi1dv 2761 |
. . . 4
|
| 7 | 4, 6 | anbi12d 477 |
. . 3
|
| 8 | raleq 2749 |
. . . . . 6
| |
| 9 | 8 | raleqbi1dv 2761 |
. . . . 5
|
| 10 | 9 | raleqbi1dv 2761 |
. . . 4
|
| 11 | raleq 2749 |
. . . . 5
| |
| 12 | 11 | raleqbi1dv 2761 |
. . . 4
|
| 13 | 10, 12 | anbi12d 477 |
. . 3
|
| 14 | 3, 7, 13 | 3anbi123d 1353 |
. 2
|
| 15 | dftap2 7607 |
. 2
| |
| 16 | dftap2 7607 |
. 2
| |
| 17 | 14, 15, 16 | 3bitr4g 223 |
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-ext 2220 |
| This theorem depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-in 3226 df-ss 3233 df-opab 4188 df-xp 4775 df-pap 7598 df-tap 7605 |
| This theorem is referenced by: exmidmotap 7617 isdrngtap 14579 opprdrng 14593 |
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