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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 2771 | . 2 ⊢ (𝜑 → 𝐵 = 𝐶) |
| 4 | 1, 3 | neeqtrd 3029 | 1 ⊢ (𝜑 → 𝐴 ≠ 𝐶) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ≠ wne 2960 |
| 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 2737 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2757 df-ne 2961 |
| This theorem is used by: 3netr4d 3037 iunopeqop 5506 ttukeylem7 10514 modsumfzodifsn 14000 expnprm 16986 symgextf1lem 19536 isabvd 20967 flimclslem 24194 chordthmlem 27050 atandmtan 27138 dchrptlem3 27483 noetasuplem4 27953 opphllem6 29086 prlngmid2 29268 nrt2irr 30897 unidifsnne 32955 pmtrcnel 33475 pmtrcnel2 33476 cycpmrn 33529 qsdrnglem2 33844 fedgmul 34087 irngnzply1 34147 minplyelirng 34171 irredminply 34172 signstfveq0a 35030 subfacp1lem5 35715 ovoliunnfl 38372 voliunnfl 38374 volsupnfl 38375 cdleme40n 41302 cdleme40w 41304 cdlemg33c 41542 cdlemg33e 41544 trlcocnvat 41558 cdlemh2 41650 cdlemh 41651 cdlemj3 41657 cdlemk24-3 41737 cdlemkfid1N 41755 erng1r 41829 dvalveclem 41859 tendoinvcl 41938 tendolinv 41939 tendorinv 41940 dihatlat 42168 mapdpglem18 42523 mapdpglem22 42527 baerlem5amN 42550 baerlem5bmN 42551 baerlem5abmN 42552 mapdindp1 42554 mapdindp4 42557 hdmap14lem4a 42705 uvcn0 43370 prjspner1 43418 nlimsuc 44227 imo72b2lem2 44953 imo72b2 44958 gpg5nbgrvtx03starlem2 48894 gpg5nbgrvtx13starlem2 48897 islindeps2 49322 fucofvalne 50162 |
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