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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 8428 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 + 0) = 𝐴) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 + 0) = 𝐴 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 ∈ wcel 2205 (class class class)co 6058 ℂcc 8141 0cc0 8143 + caddc 8146 |
| This theorem was proved from axioms: ax-mp 5 ax-0id 8251 |
| This theorem is referenced by: 1p0e1 9373 9p1e10 9732 num0u 9740 numnncl2 9752 decrmanc 9786 decaddi 9789 decaddci 9790 decmul1 9793 decmulnc 9796 fsumrelem 12185 demoivreALT 12488 decsplit0 13153 ballotfilemth 13228 sinhalfpilem 15785 efipi 15795 |
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