| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > rpex | Structured version Visualization version GIF version | ||
| Description: The positive reals form a set. (Contributed by Glauco Siliprandi, 11-Oct-2020.) |
| Ref | Expression |
|---|---|
| rpex | ⊢ ℝ+ ∈ V |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | reex 11296 | . 2 ⊢ ℝ ∈ V | |
| 2 | rpssre 13133 | . 2 ⊢ ℝ+ ⊆ ℝ | |
| 3 | 1, 2 | ssexi 5283 | 1 ⊢ ℝ+ ∈ V |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ∈ wcel 2144 Vcvv 3450 ℝcr 11204 ℝ+crp 13125 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 ax-sep 5248 ax-cnex 11261 ax-resscn 11262 |
| This proof depends on definitions: df-bi 210 df-an 402 df-3an 1105 df-tru 1572 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 df-ss 3897 df-in 4090 df-rp 13126 |
| This theorem is used by: ovncvrrp 47681 ovnsubaddlem1 47687 ovncvr2 47728 |
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