| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > uzxrd | Structured version Visualization version GIF version | ||
| Description: An upper integer is an extended real. (Contributed by Glauco Siliprandi, 2-Jan-2022.) |
| Ref | Expression |
|---|---|
| uzxrd.1 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
| uzxrd.2 | ⊢ (𝜑 → 𝐴 ∈ 𝑍) |
| Ref | Expression |
|---|---|
| uzxrd | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ressxr 11180 | . 2 ⊢ ℝ ⊆ ℝ* | |
| 2 | uzxrd.1 | . . 3 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
| 3 | uzxrd.2 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑍) | |
| 4 | 2, 3 | uzred 45889 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| 5 | 1, 4 | sselid 3920 | 1 ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 ‘cfv 6492 ℝcr 11028 ℝ*cxr 11169 ℤ≥cuz 12779 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pr 5370 ax-cnex 11085 ax-resscn 11086 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-fv 6500 df-ov 7363 df-xr 11174 df-neg 11371 df-z 12516 df-uz 12780 |
| This theorem is referenced by: uzxr 45914 liminflelimsupuz 46231 |
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