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| Mirrors > Home > MPE Home > Th. List > neeqtrrd | Structured version Visualization version GIF version | ||
| Description: Substitution of equal classes into an inequality. (Contributed by NM, 4-Jul-2012.) |
| Ref | Expression |
|---|---|
| neeqtrrd.1 | ⊢ (𝜑 → 𝐴 ≠ 𝐵) |
| neeqtrrd.2 | ⊢ (𝜑 → 𝐶 = 𝐵) |
| Ref | Expression |
|---|---|
| neeqtrrd | ⊢ (𝜑 → 𝐴 ≠ 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | neeqtrrd.1 | . 2 ⊢ (𝜑 → 𝐴 ≠ 𝐵) | |
| 2 | neeqtrrd.2 | . . 3 ⊢ (𝜑 → 𝐶 = 𝐵) | |
| 3 | 2 | eqcomd 2766 | . 2 ⊢ (𝜑 → 𝐵 = 𝐶) |
| 4 | 1, 3 | neeqtrd 3024 | 1 ⊢ (𝜑 → 𝐴 ≠ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ≠ wne 2955 |
| 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 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2752 df-ne 2956 |
| This theorem is used by: 3netr4d 3032 iunopeqop 5498 ttukeylem7 10520 modsumfzodifsn 14011 expnprm 16997 symgextf1lem 19550 isabvd 20981 flimclslem 24213 chordthmlem 27072 atandmtan 27160 dchrptlem3 27505 noetasuplem4 27975 opphllem6 29110 angmgmaddov1 29270 prlngmid2 29321 nrt2irr 30956 unidifsnne 33014 pmtrcnel 33532 pmtrcnel2 33533 cycpmrn 33586 qsdrnglem2 33901 fedgmul 34144 irngnzply1 34204 minplyelirng 34228 irredminply 34229 signstfveq0a 35087 subfacp1lem5 35766 mh-inf3f1 37163 ovoliunnfl 38414 voliunnfl 38416 volsupnfl 38417 cdleme40n 41344 cdleme40w 41346 cdlemg33c 41584 cdlemg33e 41586 trlcocnvat 41600 cdlemh2 41692 cdlemh 41693 cdlemj3 41699 cdlemk24-3 41779 cdlemkfid1N 41797 erng1r 41871 dvalveclem 41901 tendoinvcl 41980 tendolinv 41981 tendorinv 41982 dihatlat 42210 mapdpglem18 42565 mapdpglem22 42569 baerlem5amN 42592 baerlem5bmN 42593 baerlem5abmN 42594 mapdindp1 42596 mapdindp4 42599 hdmap14lem4a 42747 uvcn0 43427 prjspner1 43475 nlimsuc 44284 imo72b2lem2 45010 imo72b2 45015 gpg5nbgrvtx03starlem2 48988 gpg5nbgrvtx13starlem2 48991 islindeps2 49416 fucofvalne 50254 |
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