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| Mirrors > Home > MPE Home > Th. List > nesymi | Structured version Visualization version GIF version | ||
| Description: Inference associated with nesym 3017. (Contributed by BJ, 7-Jul-2018.) (Proof shortened by Wolf Lammen, 25-Nov-2019.) |
| Ref | Expression |
|---|---|
| nesymi.1 | ⊢ 𝐴 ≠ 𝐵 |
| Ref | Expression |
|---|---|
| nesymi | ⊢ ¬ 𝐵 = 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nesymi.1 | . . 3 ⊢ 𝐴 ≠ 𝐵 | |
| 2 | 1 | necomi 3015 | . 2 ⊢ 𝐵 ≠ 𝐴 |
| 3 | 2 | neii 2963 | 1 ⊢ ¬ 𝐵 = 𝐴 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 = wceq 1570 ≠ wne 2961 |
| 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 2156 ax-ext 2738 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2758 df-ne 2962 |
| This theorem is used by: 0nelopab 5555 0nelxp 5700 1sdom2dom 9224 recgt0ii 12139 xrltnr 13162 nltmnf 13172 xnn0xadd0 13291 sgnnbi 15167 sgnpbi 15168 fnpr2ob 17637 setcepi 18170 pmtrprfval 19588 pmtrprfvalrn 19589 cnfldfun 21573 zringndrg 21655 plyn0mulidp 26479 vieta1lem2 26509 2lgslem3 27605 2lgslem4 27607 ltsval2 27857 nosgnn0 27859 nogt01o 27897 structiedg0val 29409 snstriedgval 29425 rusgrnumwwlkl1 30357 clwwlknon1sn 30488 frgrreggt1 30781 1nei 33119 rtelextdg2lem 34147 ballotlemi1 34925 fmlaomn0 35903 fmla0disjsuc 35911 fmlasucdisj 35912 bj-0nel1 37630 bj-0nelsngl 37648 bj-pr22val 37696 bj-pinftynminfty 37912 finxp0 38078 wepwsolem 43810 refsum2cnlem1 45798 spr0nelg 48266 oddprmALTV 48493 |
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