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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 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xpeq12 4678 |
. . . . 5
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2 | 1 | anidms 397 |
. . . 4
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3 | 2 | sseq2d 3209 |
. . 3
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4 | raleq 2690 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
5 | raleq 2690 |
. . . . 5
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6 | 5 | raleqbi1dv 2702 |
. . . 4
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7 | 4, 6 | anbi12d 473 |
. . 3
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8 | raleq 2690 |
. . . . . 6
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9 | 8 | raleqbi1dv 2702 |
. . . . 5
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10 | 9 | raleqbi1dv 2702 |
. . . 4
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11 | raleq 2690 |
. . . . 5
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12 | 11 | raleqbi1dv 2702 |
. . . 4
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13 | 10, 12 | anbi12d 473 |
. . 3
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14 | 3, 7, 13 | 3anbi123d 1323 |
. 2
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15 | dftap2 7311 |
. 2
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16 | dftap2 7311 |
. 2
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17 | 14, 15, 16 | 3bitr4g 223 |
1
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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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-in 3159 df-ss 3166 df-opab 4091 df-xp 4665 df-pap 7308 df-tap 7310 |
This theorem is referenced by: exmidmotap 7321 |
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