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| Mirrors > Home > ILE Home > Th. List > nfeq2 | GIF version | ||
| Description: Hypothesis builder for equality, special case. (Contributed by Mario Carneiro, 10-Oct-2016.) |
| Ref | Expression |
|---|---|
| nfeq2.1 | ⊢ Ⅎ𝑥𝐵 |
| Ref | Expression |
|---|---|
| nfeq2 | ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfcv 2392 | . 2 ⊢ Ⅎ𝑥𝐴 | |
| 2 | nfeq2.1 | . 2 ⊢ Ⅎ𝑥𝐵 | |
| 3 | 1, 2 | nfeq 2400 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 Ⅎwnf 1513 Ⅎwnfc 2379 |
| 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-tru 1405 df-nf 1514 df-sb 1816 df-cleq 2231 df-clel 2234 df-nfc 2381 |
| This theorem is used by: issetf 2829 eqvincf 2951 csbhypf 3186 nfpr 3759 intab 3999 nfmpt 4223 cbvmptf 4225 cbvmpt 4226 repizf2 4299 moop2 4392 eusvnf 4599 elrnmpt1 5033 iotaexab 5356 fmptco 5874 dfimafnf 5955 elabrex 5963 elabrexg 5964 nfmpo 6157 cbvmpox 6166 ovmpodxf 6214 fmpox 6436 f1od2 6471 nfrecs 6578 erovlem 6901 xpf1o 7144 mapxpen 7148 mkvprop 7498 cc3 7634 lble 9277 hashf1lem2 11286 nfsum1 12122 nfsum 12123 zsumdc 12151 fsum3 12154 fsum3cvg2 12161 fsum2dlemstep 12201 mertenslem2 12303 nfcprod1 12321 nfcprod 12322 zproddc 12346 fprod2dlemstep 12389 ctiunctlemfo 13330 ellimc3apf 15761 |
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