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| Mirrors > Home > ILE Home > Th. List > necomi | GIF version | ||
| Description: Inference from commutative law for inequality. (Contributed by NM, 17-Oct-2012.) |
| Ref | Expression |
|---|---|
| necomi.1 | ⊢ 𝐴 ≠ 𝐵 |
| Ref | Expression |
|---|---|
| necomi | ⊢ 𝐵 ≠ 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | necomi.1 | . 2 ⊢ 𝐴 ≠ 𝐵 | |
| 2 | necom 2504 | . 2 ⊢ (𝐴 ≠ 𝐵 ↔ 𝐵 ≠ 𝐴) | |
| 3 | 1, 2 | mpbi 145 | 1 ⊢ 𝐵 ≠ 𝐴 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: ≠ wne 2420 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-5 1500 ax-gen 1502 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-ne 2421 |
| This theorem is used by: 0nep0 4304 xp01disj 6710 xp01disjl 6711 rex2dom 7115 djulclb 7402 djuinr 7410 2oneel 7629 pnfnemnf 8387 mnfnepnf 8388 ltneii 8430 1ne0 9382 0ne2 9522 fzprval 10507 0tonninf 10899 1tonninf 10900 ressplusgd 13543 ressmulrg 13559 fnpr2o 13720 fvpr0o 13722 fvpr1o 13723 mgpress 14338 rmodislmod 14798 sralemg 14885 srascag 14889 sratsetg 14892 sradsg 14895 zlmbasg 15074 zlmplusgg 15075 zlmmulrg 15076 zlmsca 15077 znbas2 15085 znadd 15086 znmul 15087 usgrexmpldifpr 16707 konigsbergiedgwen 16942 konigsberglem2 16947 konigsberglem3 16948 konigsberglem5 16950 |
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