| Mathbox for Glauco Siliprandi |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > Mathboxes > xrge0ge0 | Structured version Visualization version GIF version | ||
| Description: A nonnegative extended real is nonnegative. (Contributed by Glauco Siliprandi, 11-Oct-2020.) |
| Ref | Expression |
|---|---|
| xrge0ge0 | ⊢ (𝐴 ∈ (0[,]+∞) → 0 ≤ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elxrge0 13479 | . . 3 ⊢ (𝐴 ∈ (0[,]+∞) ↔ (𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴)) | |
| 2 | 1 | biimpi 219 | . 2 ⊢ (𝐴 ∈ (0[,]+∞) → (𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴)) |
| 3 | 2 | simprd 500 | 1 ⊢ (𝐴 ∈ (0[,]+∞) → 0 ≤ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 ∈ wcel 2143 class class class wbr 5109 (class class class)co 7410 0cc0 11095 +∞cpnf 11235 ℝ*cxr 11237 ≤ cle 11239 [,]cicc 13370 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-sep 5257 ax-pow 5336 ax-pr 5404 ax-un 7732 ax-cnex 11151 ax-resscn 11152 ax-1cn 11153 ax-addrcl 11156 ax-rnegex 11166 ax-cnre 11168 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-nel 3065 df-ral 3080 df-rex 3090 df-rab 3417 df-v 3457 df-sbc 3745 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-nul 4287 df-if 4488 df-pw 4564 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4873 df-br 5110 df-opab 5174 df-id 5556 df-xp 5667 df-rel 5668 df-cnv 5669 df-co 5670 df-dm 5671 df-iota 6492 df-fun 6538 df-fv 6544 df-ov 7413 df-oprab 7414 df-mpo 7415 df-pnf 11240 df-mnf 11241 df-xr 11242 df-ltxr 11243 df-le 11244 df-icc 13374 |
| This theorem is referenced by: sge0xaddlem1 47147 sge0xaddlem2 47148 ovnsubaddlem1 47284 |
| Copyright terms: Public domain | W3C validator |