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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 7936 | . 2 ⊢ -𝐴 = (0 − 𝐴) | |
2 | 0cn 7758 | . . 3 ⊢ 0 ∈ ℂ | |
3 | subcl 7961 | . . 3 ⊢ ((0 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (0 − 𝐴) ∈ ℂ) | |
4 | 2, 3 | mpan 420 | . 2 ⊢ (𝐴 ∈ ℂ → (0 − 𝐴) ∈ ℂ) |
5 | 1, 4 | eqeltrid 2226 | 1 ⊢ (𝐴 ∈ ℂ → -𝐴 ∈ ℂ) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1480 (class class class)co 5774 ℂcc 7618 0cc0 7620 − cmin 7933 -cneg 7934 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-setind 4452 ax-resscn 7712 ax-1cn 7713 ax-icn 7715 ax-addcl 7716 ax-addrcl 7717 ax-mulcl 7718 ax-addcom 7720 ax-addass 7722 ax-distr 7724 ax-i2m1 7725 ax-0id 7728 ax-rnegex 7729 ax-cnre 7731 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-ral 2421 df-rex 2422 df-reu 2423 df-rab 2425 df-v 2688 df-sbc 2910 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-br 3930 df-opab 3990 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-iota 5088 df-fun 5125 df-fv 5131 df-riota 5730 df-ov 5777 df-oprab 5778 df-mpo 5779 df-sub 7935 df-neg 7936 |
This theorem is referenced by: negicn 7963 negcon1 8014 negdi 8019 negdi2 8020 negsubdi2 8021 neg2sub 8022 negcli 8030 negcld 8060 mulneg2 8158 mul2neg 8160 mulsub 8163 apsub1 8404 subap0 8405 divnegap 8466 divsubdirap 8468 divsubdivap 8488 eqneg 8492 div2negap 8495 divneg2ap 8496 zeo 9156 sqneg 10352 binom2sub 10405 shftval4 10600 shftcan1 10606 shftcan2 10607 crim 10630 resub 10642 imsub 10650 cjneg 10662 cjsub 10664 absneg 10822 abs2dif2 10879 subcn2 11080 efcan 11382 efap0 11383 efne0 11384 efneg 11385 efsub 11387 sinneg 11433 cosneg 11434 tannegap 11435 efmival 11440 sinsub 11447 cossub 11448 sincossq 11455 sin2pim 12894 cos2pim 12895 |
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