| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > rexrd | GIF version | ||
| Description: A standard real is an extended real. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| rexrd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| Ref | Expression |
|---|---|
| rexrd | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ressxr 8370 | . 2 ⊢ ℝ ⊆ ℝ* | |
| 2 | rexrd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 3 | 1, 2 | sselid 3246 | 1 ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 ℝcr 8179 ℝ*cxr 8360 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 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-ext 2220 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-xr 8365 |
| This theorem is used by: xnn0xr 9640 rpxr 10073 rpxrd 10109 xnn0dcle 10215 xnegcl 10245 xaddf 10257 xaddval 10258 xnn0lenn0nn0 10278 xposdif 10295 iooshf 10365 icoshftf1o 10404 ioo0 10705 ioom 10706 ico0 10707 ioc0 10708 xqltnle 10713 modqelico 10786 mulqaddmodid 10816 addmodid 10824 elicc4abs 11877 xrmaxiflemcl 12030 fprodge1 12425 pcxcl 13113 pcdvdsb 13122 pcaddlem 13141 pcadd 13142 xblss2ps 15596 xblss2 15597 blss2ps 15598 blss2 15599 blhalf 15600 cnblcld 15727 ioo2blex 15744 tgioo 15746 cnopnap 15803 suplociccreex 15816 suplociccex 15817 dedekindicc 15825 ivthinclemlm 15826 ivthinclemum 15827 ivthinclemlopn 15828 ivthinclemuopn 15830 ivthdec 15836 ivthreinc 15837 sin0pilem2 15975 pilem3 15976 vtxdgfifival 16698 |
| Copyright terms: Public domain | W3C validator |