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| Mirrors > Home > ILE Home > Th. List > renegcli | GIF version | ||
| Description: Closure law for negative of reals. (Note: this inference proof style and the deduction theorem usage in renegcl 8581 is deprecated, but is retained for its demonstration value.) (Contributed by NM, 17-Jan-1997.) (Proof shortened by Andrew Salmon, 22-Oct-2011.) |
| Ref | Expression |
|---|---|
| renegcl.1 | ⊢ 𝐴 ∈ ℝ |
| Ref | Expression |
|---|---|
| renegcli | ⊢ -𝐴 ∈ ℝ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | renegcl.1 | . 2 ⊢ 𝐴 ∈ ℝ | |
| 2 | renegcl 8581 | . 2 ⊢ (𝐴 ∈ ℝ → -𝐴 ∈ ℝ) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ -𝐴 ∈ ℝ |
| Colors of variables: wff set class |
| Syntax hints: ∈ wcel 2209 ℝcr 8172 -cneg 8492 |
| 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 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 4247 ax-pow 4309 ax-pr 4344 ax-setind 4682 ax-resscn 8265 ax-1cn 8266 ax-icn 8268 ax-addcl 8269 ax-addrcl 8270 ax-mulcl 8271 ax-addcom 8273 ax-addass 8275 ax-distr 8277 ax-i2m1 8278 ax-0id 8281 ax-rnegex 8282 ax-cnre 8284 |
| This theorem 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 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-opab 4191 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-iota 5335 df-fun 5377 df-fv 5383 df-riota 6032 df-ov 6082 df-oprab 6083 df-mpo 6084 df-sub 8493 df-neg 8494 |
| This theorem is referenced by: resubcli 8583 inelr 8906 cju 9285 neg1rr 9393 sincos2sgn 12516 neghalfpire 15877 coseq0negpitopi 15920 negpitopissre 15939 rpabscxpbnd 16025 birthdaylog2 16073 ex-fl 16722 |
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