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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 8159 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8305 | . 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 1395 ∈ wcel 2200 (class class class)co 6011 ℂcc 8018 0cc0 8020 + caddc 8023 |
| 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 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-4 1556 ax-17 1572 ax-ial 1580 ax-ext 2211 ax-1cn 8113 ax-icn 8115 ax-addcl 8116 ax-mulcl 8118 ax-i2m1 8125 ax-0id 8128 |
| This theorem depends on definitions: df-bi 117 df-cleq 2222 df-clel 2225 |
| This theorem is referenced by: negdii 8451 addgt0 8616 addgegt0 8617 addgtge0 8618 addge0 8619 add20 8642 recexaplem2 8820 crap0 9126 iap0 9355 decaddm10 9657 10p10e20 9693 ser0 10783 bcpasc 11016 abs00ap 11610 fsumadd 11954 fsumrelem 12019 arisum 12046 bezoutr1 12591 nnnn0modprm0 12815 pcaddlem 12899 4sqlem19 12969 cnfld0 14572 vtxdgfi0e 16097 1kp2ke3k 16230 |
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