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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 8330 | . 2 ⊢ (𝐴 ∈ ℂ → (1 · 𝐴) = 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (1 · 𝐴) = 𝐴 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 ∈ wcel 2209 (class class class)co 6088 ℂcc 8183 1c1 8186 · cmul 8190 |
| 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 8277 ax-1cn 8278 ax-icn 8280 ax-addcl 8281 ax-mulcl 8283 ax-mulcom 8286 ax-mulass 8288 ax-distr 8289 ax-1rid 8292 ax-cnre 8296 |
| 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 4132 df-iota 5340 df-fv 5388 df-ov 6091 |
| This theorem is used by: halfpm6th 9536 div4p1lem1div2 9570 3halfnz 9753 sq10 11171 fac2 11190 efival 12523 ef01bndlem 12547 3dvdsdec 12656 3dvds2dec 12657 odd2np1lem 12663 m1expo 12691 m1exp1 12692 nno 12697 dec5nprm 13221 2exp8 13243 13prm 13258 23prm 13261 37prm 13263 43prm 13264 83prm 13265 139prm 13266 163prm 13267 317prm 13268 631prm 13269 1259lem2 13271 1259lem3 13272 1259lem4 13273 1259lem5 13274 sin2pim 16057 cos2pim 16058 sincosq3sgn 16072 sincosq4sgn 16073 cosq23lt0 16077 tangtx 16082 sincosq1eq 16083 sincos4thpi 16084 sincos6thpi 16086 abssinper 16090 cosq34lt1 16095 log2ublem3 16240 log2ublog2 16241 bclbnd 16324 bpos1 16327 bposlem8 16335 lgsdir2lem1 16369 lgsdir2lem4 16372 lgsdir2lem5 16373 2lgsoddprmlem3c 16450 ex-fl 16961 |
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