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| Mirrors > Home > MPE Home > Th. List > nfeq1 | Structured version Visualization version GIF version | ||
| Description: Hypothesis builder for equality, special case. (Contributed by Mario Carneiro, 10-Oct-2016.) |
| Ref | Expression |
|---|---|
| nfeq1.1 | ⊢ Ⅎ𝑥𝐴 |
| Ref | Expression |
|---|---|
| nfeq1 | ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfeq1.1 | . 2 ⊢ Ⅎ𝑥𝐴 | |
| 2 | nfcv 2923 | . 2 ⊢ Ⅎ𝑥𝐵 | |
| 3 | 1, 2 | nfeq 2936 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 Ⅎwnf 1816 Ⅎwnfc 2908 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-tru 1573 df-ex 1813 df-nf 1817 df-cleq 2753 df-nfc 2910 |
| This theorem is used by: euabsn 4687 invdisjrab 5090 disjxun 5101 iunopeqop 5494 iunopeqopOLD 5495 fvelimad 6950 opabiotafun 6963 fvmptt 7012 eusvobj2 7410 oprabv 7478 ovmpodv2 7576 ov3 7581 dom2lem 9012 ttrcltr 9710 pwfseqlem2 10737 fsumf1o 15882 isummulc2 15921 fsum00 15958 isumshft 16001 zprod 16097 fprodf1o 16106 prodss 16107 fprodle 16156 iserodd 17006 yonedalem4b 18443 gsum2d2lem 20180 gsummptnn0fz 20193 gsummoncoe1 22619 elptr2 23886 ovoliunnul 25821 mbfinf 25979 itg2splitlem 26062 dgrle 26555 noinfbnd1 28079 disjabrex 33169 disjabrexf 33170 disjunsn 33181 voliune 34855 volfiniune 34856 bnj958 35563 bnj1491 35680 finminlem 37086 poimirlem23 38541 poimirlem28 38546 cdleme43fsv1snlem 41457 ltrniotaval 41618 cdlemksv2 41884 cdlemkuv2 41904 cdlemk36 41950 cdlemkid 41973 cdlemk19x 41980 eq0rabdioph 43766 monotoddzz 43929 disjinfi 46176 dvnprodlem1 46925 stoweidlem28 47007 stoweidlem48 47027 stoweidlem58 47037 etransclem32 47245 sge0f1o 47361 sge0gtfsumgt 47422 voliunsge0lem 47451 sssmf 47717 |
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