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Mirrors > Home > MPE Home > Th. List > nfne | Structured version Visualization version GIF version |
Description: Bound-variable hypothesis builder for inequality. (Contributed by NM, 10-Nov-2007.) (Revised by Mario Carneiro, 7-Oct-2016.) |
Ref | Expression |
---|---|
nfne.1 | ⊢ Ⅎ𝑥𝐴 |
nfne.2 | ⊢ Ⅎ𝑥𝐵 |
Ref | Expression |
---|---|
nfne | ⊢ Ⅎ𝑥 𝐴 ≠ 𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-ne 2782 | . 2 ⊢ (𝐴 ≠ 𝐵 ↔ ¬ 𝐴 = 𝐵) | |
2 | nfne.1 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
3 | nfne.2 | . . . 4 ⊢ Ⅎ𝑥𝐵 | |
4 | 2, 3 | nfeq 2762 | . . 3 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
5 | 4 | nfn 1768 | . 2 ⊢ Ⅎ𝑥 ¬ 𝐴 = 𝐵 |
6 | 1, 5 | nfxfr 1771 | 1 ⊢ Ⅎ𝑥 𝐴 ≠ 𝐵 |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 = wceq 1475 Ⅎwnf 1699 Ⅎwnfc 2738 ≠ wne 2780 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-cleq 2603 df-nfc 2740 df-ne 2782 |
This theorem is referenced by: cantnflem1 8469 ac6c4 9186 fproddiv 14530 fprodn0 14548 fproddivf 14557 mreiincl 16079 lss1d 18784 iuncon 21041 restmetu 22185 coeeq2 23802 bnj1534 30177 bnj1542 30181 bnj1398 30356 bnj1445 30366 bnj1449 30370 bnj1312 30380 bnj1525 30391 cvmcov 30499 nfwlim 31012 sltval2 31053 nobndlem5 31095 finminlem 31482 finxpreclem2 32403 poimirlem25 32604 poimirlem26 32605 poimirlem28 32607 cdleme40m 34773 cdleme40n 34774 dihglblem5 35605 iunconlem2 38193 eliuniin2 38335 suprnmpt 38350 disjf1 38364 disjrnmpt2 38370 disjinfi 38375 fsumiunss 38642 idlimc 38693 0ellimcdiv 38716 stoweidlem31 38924 stoweidlem58 38951 fourierdlem31 39031 sge0iunmpt 39311 |
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