| 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 2997 | . 2 ⊢ (𝐴 ≠ 𝐶 ↔ 𝐵 ≠ 𝐶) |
| 4 | 1, 3 | mpbir 231 | 1 ⊢ 𝐴 ≠ 𝐶 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ≠ wne 2933 |
| 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 1912 ax-6 1969 ax-7 2010 ax-9 2124 ax-ext 2709 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-ex 1782 df-cleq 2729 df-ne 2934 |
| This theorem is referenced by: eqnetrri 3004 notzfaus 5300 2on0 8412 1n0 8416 snnen2o 9148 noinfep 9572 card1 9883 fin23lem31 10256 s1nz 14561 bpoly4 16015 tan0 16109 nn0rppwr 16521 basendxnmulrndx 17250 plusgndxnmulrndx 17251 slotsbhcdif 17369 xrsnsgrp 21397 pzriprnglem4 21474 ustuqtop1 24216 iaa 26302 tan4thpi 26491 tan4thpiOLD 26492 ang180lem2 26787 mcubic 26824 quart1lem 26832 nogt01o 27674 slotsinbpsd 28523 slotslnbpsd 28524 ex-lcm 30543 9p10ne21 30555 cos9thpiminplylem5 33946 esumnul 34208 ballotth 34698 quad3 35868 bj-1upln0 37332 bj-2upln0 37346 bj-2upln1upl 37347 tan3rdpi 42798 sn-0ne2 42852 flt0 43084 flt4lem5e 43103 mncn0 43585 aaitgo 43608 stirlinglem11 46530 nthrucw 47332 cjnpoly 47349 pgnbgreunbgrlem4 48607 sec0 50247 2p2ne5 50285 |
| Copyright terms: Public domain | W3C validator |