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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 8176 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8322 | . 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 2201 (class class class)co 6023 ℂcc 8035 0cc0 8037 + caddc 8040 |
| 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 2212 ax-1cn 8130 ax-icn 8132 ax-addcl 8133 ax-mulcl 8135 ax-i2m1 8142 ax-0id 8145 |
| This theorem depends on definitions: df-bi 117 df-cleq 2223 df-clel 2226 |
| This theorem is referenced by: negdii 8468 addgt0 8633 addgegt0 8634 addgtge0 8635 addge0 8636 add20 8659 recexaplem2 8837 crap0 9143 iap0 9372 decaddm10 9674 10p10e20 9710 ser0 10801 bcpasc 11034 abs00ap 11645 fsumadd 11990 fsumrelem 12055 arisum 12082 bezoutr1 12627 nnnn0modprm0 12851 pcaddlem 12935 4sqlem19 13005 cnfld0 14609 vtxdgfi0e 16175 1kp2ke3k 16377 |
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