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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 8159 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 1) = 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 · 1) = 𝐴 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1395 ∈ wcel 2200 (class class class)co 6010 ℂcc 8013 1c1 8016 · cmul 8020 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 ax-resscn 8107 ax-1cn 8108 ax-icn 8110 ax-addcl 8111 ax-mulcl 8113 ax-mulcom 8116 ax-mulass 8118 ax-distr 8119 ax-1rid 8122 ax-cnre 8126 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2801 df-un 3201 df-in 3203 df-ss 3210 df-sn 3672 df-pr 3673 df-op 3675 df-uni 3889 df-br 4084 df-iota 5281 df-fv 5329 df-ov 6013 |
| This theorem is referenced by: rimul 8748 muleqadd 8831 1t1e1 9279 2t1e2 9280 3t1e3 9282 halfpm6th 9347 iap0 9350 9p1e10 9596 numltc 9619 numsucc 9633 dec10p 9636 numadd 9640 numaddc 9641 11multnc 9661 4t3lem 9690 5t2e10 9693 9t11e99 9723 rei 11431 imi 11432 cji 11434 0.999... 12053 efival 12264 ef01bndlem 12288 5ndvds6 12467 3lcm2e6 12703 decsplit0b 12970 2exp8 12979 dveflem 15421 efhalfpi 15494 |
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