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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 8220 | . 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 2202 (class class class)co 6028 ℂcc 8073 1c1 8076 · cmul 8080 |
| 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 2213 ax-resscn 8167 ax-1cn 8168 ax-icn 8170 ax-addcl 8171 ax-mulcl 8173 ax-mulcom 8176 ax-mulass 8178 ax-distr 8179 ax-1rid 8182 ax-cnre 8186 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-ral 2516 df-rex 2517 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-sn 3679 df-pr 3680 df-op 3682 df-uni 3899 df-br 4094 df-iota 5293 df-fv 5341 df-ov 6031 |
| This theorem is referenced by: halfpm6th 9406 div4p1lem1div2 9440 3halfnz 9621 sq10 11020 fac2 11039 efival 12356 ef01bndlem 12380 3dvdsdec 12489 3dvds2dec 12490 odd2np1lem 12496 m1expo 12524 m1exp1 12525 nno 12530 dec5nprm 13050 2exp8 13071 sin2pim 15607 cos2pim 15608 sincosq3sgn 15622 sincosq4sgn 15623 cosq23lt0 15627 tangtx 15632 sincosq1eq 15633 sincos4thpi 15634 sincos6thpi 15636 abssinper 15640 cosq34lt1 15644 lgsdir2lem1 15830 lgsdir2lem4 15833 lgsdir2lem5 15834 2lgsoddprmlem3c 15911 ex-fl 16422 |
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