| 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 3028 | . 2 ⊢ (𝐴 ≠ 𝐶 ↔ 𝐵 ≠ 𝐶) |
| 4 | 1, 3 | mpbir 234 | 1 ⊢ 𝐴 ≠ 𝐶 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 ≠ wne 2964 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-9 2159 ax-ext 2741 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-ex 1807 df-cleq 2761 df-ne 2965 |
| This theorem is referenced by: eqnetrri 3035 notzfaus 5332 2on0 8464 1n0 8468 1n0OLD 8469 snnen2o 9201 noinfep 9625 card1 9950 fin23lem31 10323 s1nz 14641 bpoly4 16109 tan0 16203 nn0rppwr 16615 basendxnmulrndx 17345 plusgndxnmulrndx 17346 slotsbhcdif 17464 xrsnsgrp 21523 pzriprnglem4 21599 ustuqtop1 24363 iaa 26451 tan4thpi 26641 tan4thpiOLD 26642 ang180lem2 26937 mcubic 26974 quart1lem 26982 nogt01o 27822 slotsinbpsd 28672 slotslnbpsd 28673 ex-lcm 30746 9p10ne21 30758 cos9thpiminplylem5 34117 esumnul 34379 ballotth 34869 quad3 36057 bj-1upln0 37529 bj-2upln0 37543 bj-2upln1upl 37544 tan3rdpi 42996 sn-0ne2 43050 flt0 43254 flt4lem5e 43273 mncn0 43751 aaitgo 43774 stirlinglem11 46683 nthrucw 47487 cjnpoly 47508 pgnbgreunbgrlem4 48766 sec0 50416 2p2ne5 50454 |
| Copyright terms: Public domain | W3C validator |