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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 8167 | . 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 1395 ∈ wcel 2200 (class class class)co 6013 ℂcc 8020 1c1 8023 · cmul 8027 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 ax-resscn 8114 ax-1cn 8115 ax-icn 8117 ax-addcl 8118 ax-mulcl 8120 ax-mulcom 8123 ax-mulass 8125 ax-distr 8126 ax-1rid 8129 ax-cnre 8133 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-iota 5284 df-fv 5332 df-ov 6016 |
| This theorem is referenced by: halfpm6th 9354 div4p1lem1div2 9388 3halfnz 9567 sq10 10964 fac2 10983 efival 12283 ef01bndlem 12307 3dvdsdec 12416 3dvds2dec 12417 odd2np1lem 12423 m1expo 12451 m1exp1 12452 nno 12457 dec5nprm 12977 2exp8 12998 sin2pim 15527 cos2pim 15528 sincosq3sgn 15542 sincosq4sgn 15543 cosq23lt0 15547 tangtx 15552 sincosq1eq 15553 sincos4thpi 15554 sincos6thpi 15556 abssinper 15560 cosq34lt1 15564 lgsdir2lem1 15747 lgsdir2lem4 15750 lgsdir2lem5 15751 2lgsoddprmlem3c 15828 ex-fl 16257 |
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