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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 9432 | . 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 9355 |
| 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 9363 |
| This theorem is used by: xleaddadd 10289 fzctr 10540 flhalf 10737 q2submod 10822 modaddmodup 10824 m1expeven 11023 binom2 11088 nn0opthlem2d 11159 crre 11622 imval2 11659 resqrexlemdec 11777 amgm2 11884 maxabsle 11970 maxabslemab 11972 maxltsup 11984 max0addsup 11985 arisum2 12266 efival 12499 sinadd 12503 cosadd 12504 addsin 12509 subsin 12510 cosmul 12512 addcos 12513 subcos 12514 sin2t 12516 cos2t 12517 eirraplem 12544 pythagtriplem12 13054 pythagtriplem15 13057 pythagtriplem17 13059 difsqpwdvds 13117 4sqlem11 13180 4sqlem12 13181 bl2in 15504 cosordlem 15950 gausslemma2d 16188 lgsquadlem1 16196 apdifflemf 17095 apdifflemr 17096 |
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