| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > necomd | GIF version | ||
| Description: Deduction from commutative law for inequality. (Contributed by NM, 12-Feb-2008.) |
| Ref | Expression |
|---|---|
| necomd.1 | ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| Ref | Expression |
|---|---|
| necomd | ⊢ (𝜑 → 𝐵 ≠ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | necomd.1 | . 2 ⊢ (𝜑 → 𝐴 ≠ 𝐵) | |
| 2 | necom 2498 | . 2 ⊢ (𝐴 ≠ 𝐵 ↔ 𝐵 ≠ 𝐴) | |
| 3 | 1, 2 | sylib 122 | 1 ⊢ (𝜑 → 𝐵 ≠ 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ≠ wne 2414 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-5 1496 ax-gen 1498 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-cleq 2227 df-ne 2415 |
| This theorem is referenced by: ifnefals 3669 difsnb 3839 0nelop 4366 frecabcl 6632 fidifsnen 7127 tpfidisj 7191 omp1eomlem 7387 difinfsnlem 7392 fodjuomnilemdc 7437 en2eleq 7500 en2other2 7501 netap 7573 2omotaplemap 7576 ltned 8392 lt0ne0 8707 zdceq 9658 zneo 9685 xrlttri3 10136 qdceq 10611 flqltnz 10654 seqf1oglem1 10888 nn0opthd 11092 hashdifpr 11193 hashtpgim 11225 cats1un 11421 sumtp 12108 nninfctlemfo 12744 isprm2lem 12821 oddprm 12965 pcmpt 13049 ennnfonelemex 13186 perfectlem2 15917 lgsneg 15946 lgseisenlem4 15995 lgsquadlem1 15999 lgsquadlem3 16001 lgsquad2 16005 2lgsoddprm 16035 funvtxval0d 16077 umgrvad2edg 16255 1hegrvtxdg1rfi 16354 vdegp1bid 16359 umgr2cwwk2dif 16468 eupth2lem3lem4fi 16517 pw1ndom3lem 16812 pw1ndom3 16813 |
| Copyright terms: Public domain | W3C validator |