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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 8312 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8458 | . 2 ⊢ (0 ∈ ℂ → (0 + 0) = 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (0 + 0) = 0 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1402 ∈ wcel 2209 (class class class)co 6079 ℂcc 8171 0cc0 8173 + caddc 8176 |
| This theorem was proved from 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 8266 ax-icn 8268 ax-addcl 8269 ax-mulcl 8271 ax-i2m1 8278 ax-0id 8281 |
| This theorem depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is referenced by: negdii 8604 addgt0 8770 addgegt0 8771 addgtge0 8772 addge0 8773 add20 8796 recexaplem2 8974 crap0 9282 iap0 9511 decaddm10 9818 10p10e20 9854 ser0 10953 bcpasc 11187 abs00ap 11811 fsumadd 12156 fsumrelem 12221 arisum 12248 bezoutr1 12793 nnnn0modprm0 13017 pcaddlem 13101 4sqlem19 13171 cnfld0 14891 log2ublem3 16068 log2ublog2 16069 vtxdgfi0e 16519 1kp2ke3k 16721 |
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