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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 9434 | . 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 8177 + caddc 8182 · cmul 8184 2c2 9357 |
| 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 8271 ax-1cn 8272 ax-icn 8274 ax-addcl 8275 ax-mulcl 8277 ax-mulcom 8280 ax-mulass 8282 ax-distr 8283 ax-1rid 8286 ax-cnre 8290 |
| 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 9365 |
| This theorem is used by: xleaddadd 10299 fzctr 10550 flhalf 10750 q2submod 10835 modaddmodup 10837 m1expeven 11036 binom2 11101 nn0opthlem2d 11173 crre 11636 imval2 11673 resqrexlemdec 11791 amgm2 11899 maxabsle 11985 maxabslemab 11987 maxltsup 11999 max0addsup 12000 arisum2 12282 efival 12515 sinadd 12519 cosadd 12520 addsin 12525 subsin 12526 cosmul 12528 addcos 12529 subcos 12530 sin2t 12532 cos2t 12533 eirraplem 12560 pythagtriplem12 13074 pythagtriplem15 13077 pythagtriplem17 13079 difsqpwdvds 13137 4sqlem11 13200 4sqlem12 13201 bl2in 15553 cosordlem 16000 ppiqub 16194 bcctr 16200 pcbcctr 16201 bcmono 16202 bcmax 16203 bcp1ctr 16204 bposlem1 16209 bposlem2 16210 gausslemma2d 16286 lgsquadlem1 16294 apdifflemf 17193 apdifflemr 17194 |
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