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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 8507 | . 2 ⊢ -𝐴 = (0 − 𝐴) | |
| 2 | 0cn 8324 | . . 3 ⊢ 0 ∈ ℂ | |
| 3 | subcl 8532 | . . 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 6088 ℂcc 8183 0cc0 8185 − cmin 8504 -cneg 8505 |
| 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 4251 ax-pow 4313 ax-pr 4348 ax-setind 4686 ax-resscn 8277 ax-1cn 8278 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-distr 8289 ax-i2m1 8290 ax-0id 8293 ax-rnegex 8294 ax-cnre 8296 |
| 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 4132 df-opab 4194 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-sub 8506 df-neg 8507 |
| This theorem is used by: negicn 8534 negcon1 8585 negdi 8590 negdi2 8591 negsubdi2 8592 neg2sub 8593 negcli 8601 negcld 8631 mulneg2 8730 mul2neg 8732 mulsub 8735 apsub1 8978 subap0 8979 divnegap 9044 divsubdirap 9046 divsubdivap 9066 eqneg 9070 div2negap 9073 divneg2ap 9074 zeo 9762 sqneg 11056 binom2sub 11111 shftval4 11615 shftcan1 11621 shftcan2 11622 crim 11645 resub 11657 imsub 11665 cjneg 11677 cjsub 11679 absneg 11838 abs2dif2 11896 subcn2 12102 efcan 12468 efap0 12469 efne0 12470 efneg 12471 efsub 12473 sinneg 12518 cosneg 12519 tannegap 12520 efmival 12525 sinsub 12532 cossub 12533 sincossq 12540 cncrng 15015 cnfldneg 15019 sin2pim 16040 cos2pim 16041 rpcxpsub 16141 |
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