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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 8271 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8416 | . 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 6052 ℂcc 8130 0cc0 8132 + caddc 8135 |
| 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 8225 ax-icn 8227 ax-addcl 8228 ax-mulcl 8230 ax-i2m1 8237 ax-0id 8240 |
| This theorem depends on definitions: df-bi 117 df-cleq 2227 df-clel 2230 |
| This theorem is referenced by: negdii 8562 addgt0 8727 addgegt0 8728 addgtge0 8729 addge0 8730 add20 8753 recexaplem2 8931 crap0 9237 iap0 9466 decaddm10 9773 10p10e20 9809 ser0 10902 bcpasc 11136 abs00ap 11755 fsumadd 12100 fsumrelem 12165 arisum 12192 bezoutr1 12737 nnnn0modprm0 12961 pcaddlem 13045 4sqlem19 13115 cnfld0 14768 vtxdgfi0e 16339 1kp2ke3k 16541 |
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