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| Mirrors > Home > ILE Home > Th. List > breq2i | GIF version | ||
| Description: Equality inference for a binary relation. (Contributed by NM, 8-Feb-1996.) |
| Ref | Expression |
|---|---|
| breq1i.1 | ⊢ 𝐴 = 𝐵 |
| Ref | Expression |
|---|---|
| breq2i | ⊢ (𝐶𝑅𝐴 ↔ 𝐶𝑅𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
| 2 | breq2 4134 | . 2 ⊢ (𝐴 = 𝐵 → (𝐶𝑅𝐴 ↔ 𝐶𝑅𝐵)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐶𝑅𝐴 ↔ 𝐶𝑅𝐵) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ↔ wb 105 = wceq 1402 class class class wbr 4130 |
| This proof depends on 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 proof 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-v 2823 df-un 3224 df-sn 3715 df-pr 3716 df-op 3718 df-br 4131 |
| This theorem is used by: breqtri 4155 en1 7086 snnen2og 7160 1nen2 7162 pm54.43 7536 caucvgprprlemval 8055 caucvgprprlemmu 8062 caucvgsr 8169 pitonnlem1 8212 lt0neg2 8798 le0neg2 8800 negap0 8960 recexaplem2 8982 recgt1 9229 crap0 9290 addltmul 9546 nn0lt10b 9730 nn0lt2 9731 3halfnz 9747 xlt0neg2 10251 xle0neg2 10253 iccshftr 10406 iccshftl 10408 iccdil 10410 icccntr 10412 fihashen1 11252 swrdccatin2 11515 pfxccat3 11520 cjap0 11687 abs00ap 11842 xrmaxiflemval 12032 mertenslem2 12319 mertensabs 12320 3dvdsdec 12648 3dvds2dec 12649 ndvdsi 12716 bitsfzo 12738 3prm 12922 prmfac1 12947 prm23lt5 13062 dec2dvds 13210 dec5dvds2 13212 prmlem0 13240 ballotfilem4 13290 efap1p 15929 sinhalfpilem 15942 sincosq1lem 15976 sincosq1sgn 15977 sincosq2sgn 15978 sincosq3sgn 15979 sincosq4sgn 15980 logrpap0b 16028 gausslemma2dlem1a 16275 2lgsoddprmlem3 16328 konigsberglem4 16830 |
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