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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 8324 | . 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 6085 ℂcc 8178 1c1 8181 · cmul 8185 |
| 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 8272 ax-1cn 8273 ax-icn 8275 ax-addcl 8276 ax-mulcl 8278 ax-mulcom 8281 ax-mulass 8283 ax-distr 8284 ax-1rid 8287 ax-cnre 8291 |
| 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 4131 df-iota 5337 df-fv 5385 df-ov 6088 |
| This theorem is used by: rimul 8916 muleqadd 9001 1t1e1 9460 2t1e2 9461 3t1e3 9463 halfpm6th 9530 iap0 9533 9p1e10 9784 numltc 9812 numsucc 9826 dec10p 9829 numadd 9833 numaddc 9834 11multnc 9854 4t3lem 9883 5t2e10 9886 9t11e99 9916 rei 11681 imi 11682 cji 11684 0.999... 12307 efival 12518 ef01bndlem 12542 5ndvds6 12721 3lcm2e6 12958 decsplit0b 13229 2exp8 13238 37prm 13258 43prm 13259 83prm 13260 139prm 13261 163prm 13262 317prm 13263 1259lem1 13265 1259lem2 13266 1259lem3 13267 1259lem4 13268 1259lem5 13269 dveflem 15918 efhalfpi 15992 log2ublem3 16189 log2ublog2 16190 birthdaylog2 16194 ppiqub 16259 chtqub 16262 bposlem8 16284 |
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