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Mirrors > Home > ILE Home > Th. List > eceq1 | Unicode version |
Description: Equality theorem for equivalence class. (Contributed by NM, 23-Jul-1995.) |
Ref | Expression |
---|---|
eceq1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sneq 3538 | . . 3 | |
2 | 1 | imaeq2d 4881 | . 2 |
3 | df-ec 6431 | . 2 | |
4 | df-ec 6431 | . 2 | |
5 | 2, 3, 4 | 3eqtr4g 2197 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wceq 1331 csn 3527 cima 4542 cec 6427 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-xp 4545 df-cnv 4547 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-ec 6431 |
This theorem is referenced by: eceq1d 6465 ecelqsg 6482 snec 6490 qliftfun 6511 qliftfuns 6513 qliftval 6515 ecoptocl 6516 eroveu 6520 th3qlem1 6531 th3qlem2 6532 th3q 6534 dmaddpqlem 7185 nqpi 7186 1qec 7196 nqnq0 7249 nq0nn 7250 mulnnnq0 7258 addpinq1 7272 caucvgsrlemfv 7599 caucvgsr 7610 pitonnlem1 7653 axcaucvg 7708 |
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