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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 8267 | . 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 1398 ∈ wcel 2203 (class class class)co 6049 ℂcc 8121 1c1 8124 · cmul 8128 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2214 ax-resscn 8215 ax-1cn 8216 ax-icn 8218 ax-addcl 8219 ax-mulcl 8221 ax-mulcom 8224 ax-mulass 8226 ax-distr 8227 ax-1rid 8230 ax-cnre 8234 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ral 2525 df-rex 2526 df-v 2814 df-un 3214 df-in 3216 df-ss 3223 df-sn 3694 df-pr 3695 df-op 3697 df-uni 3914 df-br 4109 df-iota 5311 df-fv 5359 df-ov 6052 |
| This theorem is referenced by: rimul 8855 muleqadd 8938 1t1e1 9386 2t1e2 9387 3t1e3 9389 halfpm6th 9454 iap0 9457 9p1e10 9707 numltc 9730 numsucc 9744 dec10p 9747 numadd 9751 numaddc 9752 11multnc 9772 4t3lem 9801 5t2e10 9804 9t11e99 9834 rei 11577 imi 11578 cji 11580 0.999... 12200 efival 12411 ef01bndlem 12435 5ndvds6 12614 3lcm2e6 12850 decsplit0b 13117 2exp8 13126 dveflem 15578 efhalfpi 15651 |
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