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| Mirrors > Home > MPE Home > Th. List > nfnae | Structured version Visualization version GIF version | ||
| Description: All variables are effectively bound in a distinct variable specifier. Usage of this theorem is discouraged because it depends on ax-13 2403. Use the weaker nfnaew 2183 when possible. (Contributed by Mario Carneiro, 11-Aug-2016.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| nfnae | ⊢ Ⅎ𝑧 ¬ ∀𝑥 𝑥 = 𝑦 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfae 2464 | . 2 ⊢ Ⅎ𝑧∀𝑥 𝑥 = 𝑦 | |
| 2 | 1 | nfn 1886 | 1 ⊢ Ⅎ𝑧 ¬ ∀𝑥 𝑥 = 𝑦 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 ∀wal 1567 Ⅎwnf 1812 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1824 ax-4 1838 ax-5 1939 ax-6 1996 ax-7 2037 ax-10 2175 ax-11 2191 ax-12 2212 ax-13 2403 |
| This proof depends on definitions: df-bi 210 df-an 401 df-or 861 df-tru 1572 df-ex 1809 df-nf 1813 |
| This theorem is used by: nfald2 2476 dvelimf 2479 sbequ6 2497 2ax6elem 2501 nfsb4t 2530 sbco2 2542 sbco3 2544 sb9 2550 sbal1 2559 sbal2 2560 nfabd2 2947 ralcom2 3365 dfid3 5558 nfriotad 7380 axextnd 10582 axrepndlem1 10583 axrepndlem2 10584 axrepnd 10585 axunndlem1 10586 axunnd 10587 axpowndlem2 10589 axpowndlem3 10590 axpowndlem4 10591 axpownd 10592 axregndlem2 10594 axregnd 10595 axinfndlem1 10596 axinfnd 10597 axacndlem4 10601 axacndlem5 10602 axacnd 10603 axsepg2 35561 axsepg5 35565 axnulg 35566 axpowg2 35568 axpowg3 35569 axextdist 36297 axextbdist 36298 distel 36301 axtcond 37017 mh-setindnd 37076 wl-cbvalnaed 38215 wl-2sb6d 38241 wl-sbalnae 38245 wl-mo2df 38253 wl-mo2tf 38254 wl-eudf 38255 wl-eutf 38256 ax6e2ndeq 45296 ax6e2ndeqVD 45645 |
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