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| Mirrors > Home > ILE Home > Th. List > rpxr | GIF version | ||
| Description: A positive real is an extended real. (Contributed by Mario Carneiro, 21-Aug-2015.) |
| Ref | Expression |
|---|---|
| rpxr | ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ ℝ*) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rpre 9888 | . 2 ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ ℝ) | |
| 2 | 1 | rexrd 8222 | 1 ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ ℝ*) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2200 ℝ*cxr 8206 ℝ+crp 9881 |
| 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-io 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-rab 2517 df-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-xr 8211 df-rp 9882 |
| This theorem is referenced by: xrminrpcl 11828 blcntrps 15132 blcntr 15133 unirnblps 15139 unirnbl 15140 blssexps 15146 blssex 15147 blin2 15149 neibl 15208 blnei 15209 metss 15211 metss2lem 15214 bdmet 15219 bdmopn 15221 mopnex 15222 metrest 15223 xmettx 15227 metcnp3 15228 metcnp 15229 metcnpi3 15234 txmetcnp 15235 limcimolemlt 15381 |
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