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| Mirrors > Home > ILE Home > Th. List > 2timesd | GIF version | ||
| Description: Two times a number. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| 2timesd.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| Ref | Expression |
|---|---|
| 2timesd | ⊢ (𝜑 → (2 · 𝐴) = (𝐴 + 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2timesd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | 2times 9435 | . 2 ⊢ (𝐴 ∈ ℂ → (2 · 𝐴) = (𝐴 + 𝐴)) | |
| 3 | 1, 2 | syl 14 | 1 ⊢ (𝜑 → (2 · 𝐴) = (𝐴 + 𝐴)) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 (class class class)co 6085 ℂcc 8178 + caddc 8183 · cmul 8185 2c2 9358 |
| 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 8272 ax-1cn 8273 ax-icn 8275 ax-addcl 8276 ax-mulcl 8278 ax-mulcom 8281 ax-mulass 8283 ax-distr 8284 ax-1rid 8287 ax-cnre 8291 |
| 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 4131 df-iota 5337 df-fv 5385 df-ov 6088 df-2 9366 |
| This theorem is used by: xleaddadd 10300 fzctr 10551 flhalf 10752 q2submod 10837 modaddmodup 10839 m1expeven 11038 binom2 11103 nn0opthlem2d 11175 crre 11638 imval2 11675 resqrexlemdec 11793 amgm2 11901 maxabsle 11987 maxabslemab 11989 maxltsup 12001 max0addsup 12002 arisum2 12285 efival 12518 sinadd 12522 cosadd 12523 addsin 12528 subsin 12529 cosmul 12531 addcos 12532 subcos 12533 sin2t 12535 cos2t 12536 eirraplem 12563 pythagtriplem12 13077 pythagtriplem15 13080 pythagtriplem17 13082 difsqpwdvds 13140 4sqlem11 13203 4sqlem12 13204 bl2in 15595 cosordlem 16042 ppiqub 16254 chtublem 16256 chtqub 16257 bcctr 16263 pcbcctr 16264 bcmono 16265 bcmax 16266 bcp1ctr 16267 bposlem1 16272 bposlem2 16273 bposlem9 16280 gausslemma2d 16354 lgsquadlem1 16362 apdifflemf 17262 apdifflemr 17263 |
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