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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 8282 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8428 | . 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 1398 ∈ wcel 2205 (class class class)co 6058 ℂcc 8141 0cc0 8143 + caddc 8146 |
| 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 1496 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-4 1559 ax-17 1575 ax-ial 1583 ax-ext 2216 ax-1cn 8236 ax-icn 8238 ax-addcl 8239 ax-mulcl 8241 ax-i2m1 8248 ax-0id 8251 |
| This theorem depends on definitions: df-bi 117 df-cleq 2227 df-clel 2230 |
| This theorem is referenced by: negdii 8574 addgt0 8740 addgegt0 8741 addgtge0 8742 addge0 8743 add20 8766 recexaplem2 8944 crap0 9252 iap0 9481 decaddm10 9788 10p10e20 9824 ser0 10922 bcpasc 11156 abs00ap 11775 fsumadd 12120 fsumrelem 12185 arisum 12212 bezoutr1 12757 nnnn0modprm0 12981 pcaddlem 13065 4sqlem19 13135 cnfld0 14848 vtxdgfi0e 16419 1kp2ke3k 16621 |
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