| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > eqnetri | Structured version Visualization version GIF version | ||
| Description: Substitution of equal classes into an inequality. (Contributed by NM, 4-Jul-2012.) |
| Ref | Expression |
|---|---|
| eqnetr.1 | ⊢ 𝐴 = 𝐵 |
| eqnetr.2 | ⊢ 𝐵 ≠ 𝐶 |
| Ref | Expression |
|---|---|
| eqnetri | ⊢ 𝐴 ≠ 𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | eqnetr.2 | . 2 ⊢ 𝐵 ≠ 𝐶 | |
| 2 | eqnetr.1 | . . 3 ⊢ 𝐴 = 𝐵 | |
| 3 | 2 | neeq1i 3020 | . 2 ⊢ (𝐴 ≠ 𝐶 ↔ 𝐵 ≠ 𝐶) |
| 4 | 1, 3 | mpbir 233 | 1 ⊢ 𝐴 ≠ 𝐶 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1559 ≠ wne 2956 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-9 2151 ax-ext 2733 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-ex 1799 df-cleq 2753 df-ne 2957 |
| This theorem is referenced by: eqnetrri 3027 notzfaus 5317 2on0 8446 1n0 8450 1n0OLD 8451 snnen2o 9183 noinfep 9609 card1 9920 fin23lem31 10294 s1nz 14615 bpoly4 16080 tan0 16174 nn0rppwr 16586 basendxnmulrndx 17316 plusgndxnmulrndx 17317 slotsbhcdif 17435 xrsnsgrp 21448 pzriprnglem4 21524 ustuqtop1 24289 iaa 26377 tan4thpi 26567 tan4thpiOLD 26568 ang180lem2 26863 mcubic 26900 quart1lem 26908 nogt01o 27748 slotsinbpsd 28598 slotslnbpsd 28599 ex-lcm 30617 9p10ne21 30629 cos9thpiminplylem5 34044 esumnul 34306 ballotth 34796 quad3 35981 bj-1upln0 37455 bj-2upln0 37469 bj-2upln1upl 37470 tan3rdpi 42922 sn-0ne2 42976 flt0 43180 flt4lem5e 43199 mncn0 43677 aaitgo 43700 stirlinglem11 46619 nthrucw 47423 cjnpoly 47444 pgnbgreunbgrlem4 48702 sec0 50342 2p2ne5 50380 |
| Copyright terms: Public domain | W3C validator |