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| Mirrors > Home > ILE Home > Th. List > addridi | GIF version | ||
| Description: 0 is an additive identity. (Contributed by NM, 23-Nov-1994.) (Revised by Scott Fenton, 3-Jan-2013.) |
| Ref | Expression |
|---|---|
| mul.1 | ⊢ 𝐴 ∈ ℂ |
| Ref | Expression |
|---|---|
| addridi | ⊢ (𝐴 + 0) = 𝐴 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mul.1 | . 2 ⊢ 𝐴 ∈ ℂ | |
| 2 | addrid 8465 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 + 0) = 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 + 0) = 𝐴 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 ∈ wcel 2209 (class class class)co 6085 ℂcc 8177 0cc0 8179 + caddc 8182 |
| This proof depends on axioms: ax-mp 5 ax-0id 8287 |
| This theorem is used by: 1p0e1 9422 9p1e10 9783 num0u 9791 numnncl2 9808 decrmanc 9842 decaddi 9845 decaddci 9846 decmul1 9849 decmulnc 9852 fsumrelem 12254 demoivreALT 12557 decsplit0 13227 37prm 13255 43prm 13256 139prm 13258 163prm 13259 317prm 13260 631prm 13261 1259lem2 13263 1259lem3 13264 1259lem4 13265 1259lem5 13266 ballotfilemth 13330 sinhalfpilem 15942 efipi 15952 log2ublem3 16142 log2ublog2 16143 |
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