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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 8171 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8317 | . 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 1397 ∈ wcel 2202 (class class class)co 6018 ℂcc 8030 0cc0 8032 + caddc 8035 |
| 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 1495 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-4 1558 ax-17 1574 ax-ial 1582 ax-ext 2213 ax-1cn 8125 ax-icn 8127 ax-addcl 8128 ax-mulcl 8130 ax-i2m1 8137 ax-0id 8140 |
| This theorem depends on definitions: df-bi 117 df-cleq 2224 df-clel 2227 |
| This theorem is referenced by: negdii 8463 addgt0 8628 addgegt0 8629 addgtge0 8630 addge0 8631 add20 8654 recexaplem2 8832 crap0 9138 iap0 9367 decaddm10 9669 10p10e20 9705 ser0 10796 bcpasc 11029 abs00ap 11624 fsumadd 11969 fsumrelem 12034 arisum 12061 bezoutr1 12606 nnnn0modprm0 12830 pcaddlem 12914 4sqlem19 12984 cnfld0 14588 vtxdgfi0e 16149 1kp2ke3k 16337 |
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