| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > mullid | Structured version Visualization version GIF version | ||
| Description: Identity law for multiplication. See mulrid 11140 for commuted version. (Contributed by NM, 8-Oct-1999.) |
| Ref | Expression |
|---|---|
| mullid | ⊢ (𝐴 ∈ ℂ → (1 · 𝐴) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-1cn 11094 | . . 3 ⊢ 1 ∈ ℂ | |
| 2 | mulcom 11122 | . . 3 ⊢ ((1 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (1 · 𝐴) = (𝐴 · 1)) | |
| 3 | 1, 2 | mpan 696 | . 2 ⊢ (𝐴 ∈ ℂ → (1 · 𝐴) = (𝐴 · 1)) |
| 4 | mulrid 11140 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 1) = 𝐴) | |
| 5 | 3, 4 | eqtrd 2775 | 1 ⊢ (𝐴 ∈ ℂ → (1 · 𝐴) = 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 (class class class)co 7363 ℂcc 11034 1c1 11037 · cmul 11041 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2712 ax-resscn 11093 ax-1cn 11094 ax-icn 11095 ax-addcl 11096 ax-mulcl 11098 ax-mulcom 11100 ax-mulass 11102 ax-distr 11103 ax-1rid 11106 ax-cnre 11109 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-sb 2074 df-clab 2719 df-cleq 2732 df-clel 2815 df-rex 3065 df-rab 3393 df-v 3434 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4269 df-if 4462 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-br 5080 df-iota 6448 df-fv 6500 df-ov 7366 |
| This theorem is referenced by: mullidi 11148 mullidd 11161 muladd11 11314 1p1times 11315 mul02lem1 11320 cnegex2 11326 mulm1 11589 div1 11842 subdivcomb2 11849 recdiv 11859 divdiv2 11865 conjmul 11870 ser1const 14018 expp1 14028 recan 15297 arisum 15823 geo2sum 15836 prodrblem 15892 prodmolem2a 15897 risefac1 15996 fallfac1 15997 bpoly3 16021 bpoly4 16022 sinhval 16119 coshval 16120 demoivreALT 16166 gcdadd 16493 gcdid 16494 cncrng 21375 cnfld1 21379 blcvx 24788 icccvx 24942 cnlmod 25132 coeidp 26253 dgrid 26254 quartlem1 26846 asinsinlem 26880 asinsin 26881 atantan 26912 musumsum 27180 brbtwn2 28999 axsegconlem1 29011 ax5seglem1 29022 ax5seglem2 29023 ax5seglem4 29026 ax5seglem5 29027 axeuclid 29057 axcontlem2 29059 axcontlem4 29061 cncvcOLD 30679 dvcosax 46376 sin3t 47341 cos3t 47342 sin5tlem4 47346 |
| Copyright terms: Public domain | W3C validator |