| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > times2i | GIF version | ||
| Description: A number times 2. (Contributed by NM, 11-May-2004.) |
| Ref | Expression |
|---|---|
| 2times.1 | ⊢ 𝐴 ∈ ℂ |
| Ref | Expression |
|---|---|
| times2i | ⊢ (𝐴 · 2) = (𝐴 + 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2times.1 | . 2 ⊢ 𝐴 ∈ ℂ | |
| 2 | times2 9271 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 2) = (𝐴 + 𝐴)) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 · 2) = (𝐴 + 𝐴) |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1397 ∈ wcel 2202 (class class class)co 6017 ℂcc 8029 + caddc 8034 · cmul 8036 2c2 9193 |
| 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 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-mulcom 8132 ax-mulass 8134 ax-distr 8135 ax-1rid 8138 ax-cnre 8142 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6020 df-2 9201 |
| This theorem is referenced by: 3t2e6 9299 4t2e8 9301 6t2e12 9713 7t2e14 9718 8t2e16 9724 9t2e18 9731 |
| Copyright terms: Public domain | W3C validator |