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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 8325 | . 2 ⊢ 0 ∈ ℂ | |
| 2 | addrid 8472 | . 2 ⊢ (0 ∈ ℂ → (0 + 0) = 0) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ (0 + 0) = 0 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 ∈ wcel 2209 (class class class)co 6088 ℂcc 8184 0cc0 8186 + caddc 8189 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 ax-1cn 8279 ax-icn 8281 ax-addcl 8282 ax-mulcl 8284 ax-i2m1 8291 ax-0id 8294 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is used by: negdii 8618 addgt0 8784 addgegt0 8785 addgtge0 8786 addge0 8787 add20 8810 recexaplem2 8989 crap0 9297 iap0 9540 decaddm10 9852 10p10e20 9888 ser0 10992 bcpasc 11227 abs00ap 11851 fsumadd 12199 fsumrelem 12264 arisum 12291 bezoutr1 12836 nnnn0modprm0 13064 pcaddlem 13148 4sqlem19 13218 139prm 13268 163prm 13269 317prm 13270 631prm 13271 1259lem1 13272 1259lem2 13273 1259lem4 13275 cnfld0 15018 log2ublem3 16235 log2ublog2 16236 chtublem 16307 vtxdgfi0e 16753 1kp2ke3k 16955 |
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