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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 2804 | . 2 ⊢ (𝜑 → 𝐵 = 𝐶) |
4 | 1, 3 | neeqtrd 3056 | 1 ⊢ (𝜑 → 𝐴 ≠ 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1538 ≠ wne 2987 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-9 2121 ax-ext 2770 |
This theorem depends on definitions: df-bi 210 df-an 400 df-ex 1782 df-cleq 2791 df-ne 2988 |
This theorem is referenced by: 3netr4d 3064 ttukeylem7 9926 modsumfzodifsn 13307 expnprm 16228 symgextf1lem 18540 isabvd 19584 flimclslem 22589 chordthmlem 25418 atandmtan 25506 dchrptlem3 25850 opphllem6 26546 unidifsnne 30308 pmtrcnel 30783 pmtrcnel2 30784 cycpmrn 30835 fedgmul 31115 signstfveq0a 31956 subfacp1lem5 32544 noetalem3 33332 ovoliunnfl 35099 voliunnfl 35101 volsupnfl 35102 cdleme40n 37764 cdleme40w 37766 cdlemg33c 38004 cdlemg33e 38006 trlcocnvat 38020 cdlemh2 38112 cdlemh 38113 cdlemj3 38119 cdlemk24-3 38199 cdlemkfid1N 38217 erng1r 38291 dvalveclem 38321 tendoinvcl 38400 tendolinv 38401 tendorinv 38402 dihatlat 38630 mapdpglem18 38985 mapdpglem22 38989 baerlem5amN 39012 baerlem5bmN 39013 baerlem5abmN 39014 mapdindp1 39016 mapdindp4 39019 hdmap14lem4a 39167 imo72b2lem0 40869 imo72b2lem2 40871 imo72b2 40878 islindeps2 44892 |
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