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| Mirrors > Home > ILE Home > Th. List > mullidi | GIF version | ||
| Description: Identity law for multiplication. (Contributed by NM, 14-Feb-1995.) |
| Ref | Expression |
|---|---|
| axi.1 | ⊢ 𝐴 ∈ ℂ |
| Ref | Expression |
|---|---|
| mullidi | ⊢ (1 · 𝐴) = 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | axi.1 | . 2 ⊢ 𝐴 ∈ ℂ | |
| 2 | mullid 8288 | . 2 ⊢ (𝐴 ∈ ℂ → (1 · 𝐴) = 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (1 · 𝐴) = 𝐴 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 ∈ wcel 2205 (class class class)co 6058 ℂcc 8141 1c1 8144 · cmul 8148 |
| 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 2216 ax-resscn 8235 ax-1cn 8236 ax-icn 8238 ax-addcl 8239 ax-mulcl 8241 ax-mulcom 8244 ax-mulass 8246 ax-distr 8247 ax-1rid 8250 ax-cnre 8254 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-br 4115 df-iota 5317 df-fv 5365 df-ov 6061 |
| This theorem is referenced by: halfpm6th 9475 div4p1lem1div2 9509 3halfnz 9693 sq10 11099 fac2 11118 efival 12443 ef01bndlem 12467 3dvdsdec 12576 3dvds2dec 12577 odd2np1lem 12583 m1expo 12611 m1exp1 12612 nno 12617 dec5nprm 13137 2exp8 13158 sin2pim 15804 cos2pim 15805 sincosq3sgn 15819 sincosq4sgn 15820 cosq23lt0 15824 tangtx 15829 sincosq1eq 15830 sincos4thpi 15831 sincos6thpi 15833 abssinper 15837 cosq34lt1 15841 lgsdir2lem1 16027 lgsdir2lem4 16030 lgsdir2lem5 16031 2lgsoddprmlem3c 16108 ex-fl 16619 |
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