| 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 3023 | . 2 ⊢ (𝐴 ≠ 𝐶 ↔ 𝐵 ≠ 𝐶) |
| 4 | 1, 3 | mpbir 234 | 1 ⊢ 𝐴 ≠ 𝐶 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ≠ wne 2959 |
| 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 1945 ax-6 2002 ax-7 2043 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2755 df-ne 2960 |
| This theorem is used by: eqnetrri 3030 notsep 5332 2on0 8529 1n0 8533 1n0OLD 8534 snnen2o 9274 noinfep 9698 card1 10086 fin23lem31 10460 s1nz 14795 bpoly4 16269 tan0 16363 nn0rppwr 16779 basendxnmulrndx 17513 plusgndxnmulrndx 17514 slotsbhcdif 17636 xrsnsgrp 21766 pzriprnglem4 21845 ustuqtop1 24615 iaa 26708 iaaOLD 26709 tan4thpi 26900 ang180lem2 27195 mcubic 27232 quart1lem 27240 flt0 28026 nogt01o 28110 slotsinbpsd 28960 slotslnbpsd 28961 ex-lcm 31116 9p10ne21 31128 cos9thpiminplylem5 34529 esumnul 34791 ballotth 35281 suceldifsn0 35832 jf1 36051 jf1o 36052 k39o 36058 jltalephlem 36066 quad3 36643 bj-1upln0 38137 bj-2upln0 38151 bj-2upln1upl 38152 tan3rdpi 43669 sn-0ne2 43723 mncn0 44406 aaitgo 44429 stirlinglem11 47367 cjnpoly 48212 pgnbgreunbgrlem4 49490 bru3val 49753 fuconuniqlem 51112 tanh0 51251 sec0 51281 2p2ne5 51364 |
| Copyright terms: Public domain | W3C validator |