Theorem renegcli 8540

Description: Closure law for negative of reals. (Note: this inference proof style and the deduction theorem usage in renegcl 8539 is deprecated, but is retained for its demonstration value.) (Contributed by NM, 17-Jan-1997.) (Proof shortened by Andrew Salmon, 22-Oct-2011.)

Hypothesis

Ref	Expression
renegcl.1	⊢ 𝐴 ∈ ℝ

Assertion

Ref	Expression
renegcli	⊢ -𝐴 ∈ ℝ

Proof of Theorem renegcli

Step	Hyp	Ref	Expression
1		renegcl.1	. 2 ⊢ 𝐴 ∈ ℝ
2		renegcl 8539	. 2 ⊢ (𝐴 ∈ ℝ → -𝐴 ∈ ℝ)
3	1, 2	ax-mp 5	1 ⊢ -𝐴 ∈ ℝ

Syntax hints:   ∈ wcel 2205  ℝcr 8131  -cneg 8450

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-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-14 2208  ax-ext 2216  ax-sep 4230  ax-pow 4289  ax-pr 4324  ax-setind 4661  ax-resscn 8224  ax-1cn 8225  ax-icn 8227  ax-addcl 8228  ax-addrcl 8229  ax-mulcl 8230  ax-addcom 8232  ax-addass 8234  ax-distr 8236  ax-i2m1 8237  ax-0id 8240  ax-rnegex 8241  ax-cnre 8243

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2085  df-mo 2086  df-clab 2221  df-cleq 2227  df-clel 2230  df-nfc 2375  df-ne 2415  df-ral 2527  df-rex 2528  df-reu 2529  df-rab 2531  df-v 2817  df-sbc 3045  df-dif 3215  df-un 3217  df-in 3219  df-ss 3226  df-pw 3673  df-sn 3697  df-pr 3698  df-op 3700  df-uni 3917  df-br 4112  df-opab 4174  df-id 4416  df-xp 4757  df-rel 4758  df-cnv 4759  df-co 4760  df-dm 4761  df-iota 5314  df-fun 5356  df-fv 5362  df-riota 6005  df-ov 6055  df-oprab 6056  df-mpo 6057  df-sub 8451  df-neg 8452

This theorem is referenced by:  resubcli  8541  inelr  8863  cju  9240  neg1rr  9348  sincos2sgn  12460  neghalfpire  15707  coseq0negpitopi  15750  negpitopissre  15769  rpabscxpbnd  15854  ex-fl  16542