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| Mirrors > Home > ILE Home > Th. List > addcomli | GIF version | ||
| Description: Addition is commutative. (Contributed by Mario Carneiro, 19-Apr-2015.) |
| Ref | Expression |
|---|---|
| mul.1 | ⊢ 𝐴 ∈ ℂ |
| mul.2 | ⊢ 𝐵 ∈ ℂ |
| addcomli.2 | ⊢ (𝐴 + 𝐵) = 𝐶 |
| Ref | Expression |
|---|---|
| addcomli | ⊢ (𝐵 + 𝐴) = 𝐶 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mul.2 | . . 3 ⊢ 𝐵 ∈ ℂ | |
| 2 | mul.1 | . . 3 ⊢ 𝐴 ∈ ℂ | |
| 3 | 1, 2 | addcomi 8478 | . 2 ⊢ (𝐵 + 𝐴) = (𝐴 + 𝐵) |
| 4 | addcomli.2 | . 2 ⊢ (𝐴 + 𝐵) = 𝐶 | |
| 5 | 3, 4 | eqtri 2259 | 1 ⊢ (𝐵 + 𝐴) = 𝐶 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 ∈ wcel 2209 (class class class)co 6088 ℂcc 8184 + caddc 8189 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-4 1563 ax-17 1579 ax-ext 2220 ax-addcom 8286 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 |
| This theorem is used by: negsubdi2i 8620 1p2e3 9449 peano2z 9692 4t4e16 9892 6t3e18 9898 6t5e30 9900 7t3e21 9903 7t4e28 9904 7t6e42 9906 7t7e49 9907 8t3e24 9909 8t4e32 9910 8t5e40 9911 8t8e64 9914 9t3e27 9916 9t4e36 9917 9t5e45 9918 9t6e54 9919 9t7e63 9920 9t8e72 9921 9t9e81 9922 4bc3eq4 11235 n2dvdsm1 12706 bitsfzo 12748 6gcd4e2 12798 gcdi 13230 2exp8 13245 2exp16 13247 37prm 13265 43prm 13266 83prm 13267 139prm 13268 163prm 13269 317prm 13270 631prm 13271 1259lem1 13272 1259lem2 13273 1259lem3 13274 1259lem4 13275 1259lem5 13276 1259prm 13277 eulerid 16041 cosq23lt0 16072 binom4 16231 log2ublem3 16235 log2ublog2 16236 lgsdir2lem1 16364 m1lgs 16421 2lgsoddprmlem3d 16446 ex-exp 16958 ex-bc 16960 ex-gcd 16962 |
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