| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 2186 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 1890 | 1 ⊢ Ⅎ𝑧 ¬ ∀𝑥 𝑥 = 𝑦 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 ∀wal 1568 Ⅎwnf 1816 |
| 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-10 2178 ax-11 2194 ax-12 2215 ax-13 2403 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-tru 1573 df-ex 1813 df-nf 1817 |
| 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 3364 dfid3 5557 nfriotad 7384 axextnd 10603 axrepndlem1 10604 axrepndlem2 10605 axrepnd 10606 axunndlem1 10607 axunnd 10608 axpowndlem2 10610 axpowndlem3 10611 axpowndlem4 10612 axpownd 10613 axregndlem2 10615 axregnd 10616 axinfndlem1 10617 axinfnd 10618 axacndlem4 10622 axacndlem5 10623 axacnd 10624 axsepg2 35653 axsepg5 35657 axnulg 35658 axpowg2 35660 axpowg3 35661 axextdist 36363 axextbdist 36364 distel 36367 axtcond 37084 mh-setindnd 37143 wl-cbvalnaed 38282 wl-2sb6d 38308 wl-sbalnae 38312 wl-mo2df 38320 wl-mo2tf 38321 wl-eudf 38322 wl-eutf 38323 ax6e2ndeq 45369 ax6e2ndeqVD 45718 |
| Copyright terms: Public domain | W3C validator |