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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 4302 xp01disj 6706 xp01disjl 6707 rex2dom 7110 djulclb 7395 djuinr 7403 2oneel 7622 pnfnemnf 8380 mnfnepnf 8381 ltneii 8422 1ne0 9373 0ne2 9512 fzprval 10491 0tonninf 10879 1tonninf 10880 ressplusgd 13485 ressmulrg 13501 fnpr2o 13662 fvpr0o 13664 fvpr1o 13665 mgpress 14232 rmodislmod 14690 sralemg 14777 srascag 14781 sratsetg 14784 sradsg 14787 zlmbasg 14966 zlmplusgg 14967 zlmmulrg 14968 zlmsca 14969 znbas2 14977 znadd 14978 znmul 14979 usgrexmpldifpr 16502 konigsbergiedgwen 16737 konigsberglem2 16742 konigsberglem3 16743 konigsberglem5 16745 |
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