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Theorem renegcli 8446
Description: Closure law for negative of reals. (Note: this inference proof style and the deduction theorem usage in renegcl 8445 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
StepHypRef Expression
1 renegcl.1 . 2 𝐴 ∈ ℝ
2 renegcl 8445 . 2 (𝐴 ∈ ℝ → -𝐴 ∈ ℝ)
31, 2ax-mp 5 1 -𝐴 ∈ ℝ
Colors of variables: wff set class
Syntax hints:  wcel 2201  cr 8036  -cneg 8356
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-14 2204  ax-ext 2212  ax-sep 4208  ax-pow 4266  ax-pr 4301  ax-setind 4637  ax-resscn 8129  ax-1cn 8130  ax-icn 8132  ax-addcl 8133  ax-addrcl 8134  ax-mulcl 8135  ax-addcom 8137  ax-addass 8139  ax-distr 8141  ax-i2m1 8142  ax-0id 8145  ax-rnegex 8146  ax-cnre 8148
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1810  df-eu 2081  df-mo 2082  df-clab 2217  df-cleq 2223  df-clel 2226  df-nfc 2362  df-ne 2402  df-ral 2514  df-rex 2515  df-reu 2516  df-rab 2518  df-v 2803  df-sbc 3031  df-dif 3201  df-un 3203  df-in 3205  df-ss 3212  df-pw 3655  df-sn 3676  df-pr 3677  df-op 3679  df-uni 3895  df-br 4090  df-opab 4152  df-id 4392  df-xp 4733  df-rel 4734  df-cnv 4735  df-co 4736  df-dm 4737  df-iota 5288  df-fun 5330  df-fv 5336  df-riota 5976  df-ov 6026  df-oprab 6027  df-mpo 6028  df-sub 8357  df-neg 8358
This theorem is referenced by:  resubcli  8447  inelr  8769  cju  9146  neg1rr  9254  sincos2sgn  12350  neghalfpire  15546  coseq0negpitopi  15589  negpitopissre  15608  rpabscxpbnd  15693  ex-fl  16378
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