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| Mirrors > Home > ILE Home > Th. List > 00id | GIF version | ||
| Description: 0 is its own additive identity. (Contributed by Scott Fenton, 3-Jan-2013.) |
| Ref | Expression |
|---|---|
| 00id | ⊢ (0 + 0) = 0 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 8318 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8464 | . 2 ⊢ (0 ∈ ℂ → (0 + 0) = 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (0 + 0) = 0 |
| 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-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 ax-1cn 8272 ax-icn 8274 ax-addcl 8275 ax-mulcl 8277 ax-i2m1 8284 ax-0id 8287 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is used by: negdii 8610 addgt0 8776 addgegt0 8777 addgtge0 8778 addge0 8779 add20 8802 recexaplem2 8981 crap0 9289 iap0 9530 decaddm10 9837 10p10e20 9873 ser0 10972 bcpasc 11206 abs00ap 11830 fsumadd 12175 fsumrelem 12240 arisum 12267 bezoutr1 12812 nnnn0modprm0 13036 pcaddlem 13120 4sqlem19 13190 cnfld0 14910 log2ublem3 16091 log2ublog2 16092 vtxdgfi0e 16548 1kp2ke3k 16750 |
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