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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 8466 | . 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 8178 0cc0 8180 + caddc 8183 |
| This proof depends on axioms: ax-mp 5 ax-0id 8288 |
| This theorem is used by: 1p0e1 9423 9p1e10 9784 num0u 9792 numnncl2 9809 decrmanc 9843 decaddi 9846 decaddci 9847 decmul1 9850 decmulnc 9853 fsumrelem 12257 demoivreALT 12560 decsplit0 13230 37prm 13258 43prm 13259 139prm 13261 163prm 13262 317prm 13263 631prm 13264 1259lem2 13266 1259lem3 13267 1259lem4 13268 1259lem5 13269 ballotfilemth 13333 sinhalfpilem 15984 efipi 15994 log2ublem3 16189 log2ublog2 16190 |
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