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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 8329 | . 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 8183 1c1 8186 · cmul 8190 |
| 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 8277 ax-1cn 8278 ax-icn 8280 ax-addcl 8281 ax-mulcl 8283 ax-mulcom 8286 ax-mulass 8288 ax-distr 8289 ax-1rid 8292 ax-cnre 8296 |
| 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 8921 muleqadd 9006 1t1e1 9466 2t1e2 9467 3t1e3 9469 halfpm6th 9536 iap0 9539 9p1e10 9789 numltc 9817 numsucc 9831 dec10p 9834 numadd 9838 numaddc 9839 11multnc 9859 4t3lem 9888 5t2e10 9891 9t11e99 9921 rei 11686 imi 11687 cji 11689 0.999... 12312 efival 12523 ef01bndlem 12547 5ndvds6 12726 3lcm2e6 12963 decsplit0b 13234 2exp8 13243 37prm 13263 43prm 13264 83prm 13265 139prm 13266 163prm 13267 317prm 13268 1259lem1 13270 1259lem2 13271 1259lem3 13272 1259lem4 13273 1259lem5 13274 dveflem 15969 efhalfpi 16043 log2ublem3 16240 log2ublog2 16241 birthdaylog2 16245 ppiqub 16310 chtqub 16313 bposlem8 16335 |
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