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| Mirrors > Home > ILE Home > Th. List > negcl | GIF version | ||
| Description: Closure law for negative. (Contributed by NM, 6-Aug-2003.) |
| Ref | Expression |
|---|---|
| negcl | ⊢ (𝐴 ∈ ℂ → -𝐴 ∈ ℂ) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-neg 8500 | . 2 ⊢ -𝐴 = (0 − 𝐴) | |
| 2 | 0cn 8318 | . . 3 ⊢ 0 ∈ ℂ | |
| 3 | subcl 8525 | . . 3 ⊢ ((0 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (0 − 𝐴) ∈ ℂ) | |
| 4 | 2, 3 | mpan 428 | . 2 ⊢ (𝐴 ∈ ℂ → (0 − 𝐴) ∈ ℂ) |
| 5 | 1, 4 | eqeltrid 2325 | 1 ⊢ (𝐴 ∈ ℂ → -𝐴 ∈ ℂ) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 (class class class)co 6085 ℂcc 8177 0cc0 8179 − cmin 8497 -cneg 8498 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-setind 4684 ax-resscn 8271 ax-1cn 8272 ax-icn 8274 ax-addcl 8275 ax-addrcl 8276 ax-mulcl 8277 ax-addcom 8279 ax-addass 8281 ax-distr 8283 ax-i2m1 8284 ax-0id 8287 ax-rnegex 8288 ax-cnre 8290 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-iota 5337 df-fun 5379 df-fv 5385 df-riota 6038 df-ov 6088 df-oprab 6089 df-mpo 6090 df-sub 8499 df-neg 8500 |
| This theorem is used by: negicn 8527 negcon1 8578 negdi 8583 negdi2 8584 negsubdi2 8585 neg2sub 8586 negcli 8594 negcld 8624 mulneg2 8723 mul2neg 8725 mulsub 8728 apsub1 8970 subap0 8971 divnegap 9036 divsubdirap 9038 divsubdivap 9058 eqneg 9062 div2negap 9065 divneg2ap 9066 zeo 9751 sqneg 11035 binom2sub 11090 shftval4 11593 shftcan1 11599 shftcan2 11600 crim 11623 resub 11635 imsub 11643 cjneg 11655 cjsub 11657 absneg 11816 abs2dif2 11873 subcn2 12077 efcan 12443 efap0 12444 efne0 12445 efneg 12446 efsub 12448 sinneg 12493 cosneg 12494 tannegap 12495 efmival 12500 sinsub 12507 cossub 12508 sincossq 12515 cncrng 14906 cnfldneg 14910 sin2pim 15914 cos2pim 15915 rpcxpsub 16010 |
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