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Mirrors > Home > ILE Home > Th. List > breq1i | GIF version |
Description: Equality inference for a binary relation. (Contributed by NM, 8-Feb-1996.) |
Ref | Expression |
---|---|
breq1i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
breq1i | ⊢ (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | breq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | breq1 3788 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶)) | |
3 | 1, 2 | ax-mp 7 | 1 ⊢ (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶) |
Colors of variables: wff set class |
Syntax hints: ↔ wb 103 = wceq 1284 class class class wbr 3785 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-io 662 ax-5 1376 ax-7 1377 ax-gen 1378 ax-ie1 1422 ax-ie2 1423 ax-8 1435 ax-10 1436 ax-11 1437 ax-i12 1438 ax-bndl 1439 ax-4 1440 ax-17 1459 ax-i9 1463 ax-ial 1467 ax-i5r 1468 ax-ext 2063 |
This theorem depends on definitions: df-bi 115 df-3an 921 df-tru 1287 df-nf 1390 df-sb 1686 df-clab 2068 df-cleq 2074 df-clel 2077 df-nfc 2208 df-v 2603 df-un 2977 df-sn 3404 df-pr 3405 df-op 3407 df-br 3786 |
This theorem is referenced by: eqbrtri 3804 brtpos0 5890 euen1 6305 euen1b 6306 2dom 6308 infglbti 6438 pr2nelem 6460 caucvgprprlemnbj 6883 caucvgprprlemmu 6885 caucvgprprlemaddq 6898 caucvgprprlem1 6899 gt0srpr 6925 caucvgsr 6978 pitonnlem1 7013 pitoregt0 7017 axprecex 7046 axpre-mulgt0 7053 axcaucvglemres 7065 lt0neg1 7572 le0neg1 7574 reclt1 7974 addltmul 8267 eluz2b1 8688 nn01to3 8702 xlt0neg1 8905 xle0neg1 8907 iccshftr 9016 iccshftl 9018 iccdil 9020 icccntr 9022 bernneq 9593 oddge22np1 10281 nn0o1gt2 10305 isprm3 10500 dvdsnprmd 10507 pw2dvdslemn 10543 |
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