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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 4647 |
. . . . 5
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2 | 1 | anidms 397 |
. . . 4
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3 | 2 | sseq2d 3187 |
. . 3
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4 | raleq 2673 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | |
5 | raleq 2673 |
. . . . 5
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6 | 5 | raleqbi1dv 2681 |
. . . 4
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7 | 4, 6 | anbi12d 473 |
. . 3
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8 | raleq 2673 |
. . . . . 6
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9 | 8 | raleqbi1dv 2681 |
. . . . 5
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10 | 9 | raleqbi1dv 2681 |
. . . 4
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11 | raleq 2673 |
. . . . 5
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12 | 11 | raleqbi1dv 2681 |
. . . 4
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13 | 10, 12 | anbi12d 473 |
. . 3
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14 | 3, 7, 13 | 3anbi123d 1312 |
. 2
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15 | dftap2 7253 |
. 2
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16 | dftap2 7253 |
. 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 709 ax-5 1447 ax-7 1448 ax-gen 1449 ax-ie1 1493 ax-ie2 1494 ax-8 1504 ax-10 1505 ax-11 1506 ax-i12 1507 ax-bndl 1509 ax-4 1510 ax-17 1526 ax-i9 1530 ax-ial 1534 ax-i5r 1535 ax-ext 2159 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1461 df-sb 1763 df-clab 2164 df-cleq 2170 df-clel 2173 df-nfc 2308 df-ral 2460 df-in 3137 df-ss 3144 df-opab 4067 df-xp 4634 df-pap 7250 df-tap 7252 |
This theorem is referenced by: exmidmotap 7263 |
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