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| Mirrors > Home > ILE Home > Th. List > mulridi | GIF version | ||
| Description: Identity law for multiplication. (Contributed by NM, 14-Feb-1995.) |
| Ref | Expression |
|---|---|
| axi.1 | ⊢ 𝐴 ∈ ℂ |
| Ref | Expression |
|---|---|
| mulridi | ⊢ (𝐴 · 1) = 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | axi.1 | . 2 ⊢ 𝐴 ∈ ℂ | |
| 2 | mulrid 8330 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 1) = 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 · 1) = 𝐴 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 ∈ wcel 2209 (class class class)co 6088 ℂcc 8184 1c1 8187 · cmul 8191 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8278 ax-1cn 8279 ax-icn 8281 ax-addcl 8282 ax-mulcl 8284 ax-mulcom 8287 ax-mulass 8289 ax-distr 8290 ax-1rid 8293 ax-cnre 8297 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-iota 5340 df-fv 5388 df-ov 6091 |
| This theorem is used by: rimul 8922 muleqadd 9007 1t1e1 9467 2t1e2 9468 3t1e3 9470 halfpm6th 9537 iap0 9540 9p1e10 9791 numltc 9819 numsucc 9833 dec10p 9836 numadd 9840 numaddc 9841 11multnc 9861 4t3lem 9890 5t2e10 9893 9t11e99 9923 rei 11688 imi 11689 cji 11691 0.999... 12314 efival 12525 ef01bndlem 12549 5ndvds6 12728 3lcm2e6 12965 decsplit0b 13236 2exp8 13245 37prm 13265 43prm 13266 83prm 13267 139prm 13268 163prm 13269 317prm 13270 1259lem1 13272 1259lem2 13273 1259lem3 13274 1259lem4 13275 1259lem5 13276 dveflem 15964 efhalfpi 16038 log2ublem3 16235 log2ublog2 16236 birthdaylog2 16240 ppiqub 16305 chtqub 16308 bposlem8 16330 |
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