| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > rexr | GIF version | ||
| Description: A standard real is an extended real. (Contributed by NM, 14-Oct-2005.) |
| Ref | Expression |
|---|---|
| rexr | ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ*) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ressxr 8369 | . 2 ⊢ ℝ ⊆ ℝ* | |
| 2 | 1 | sseli 3244 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ*) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 ℝcr 8178 ℝ*cxr 8359 |
| 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 8364 |
| This theorem is used by: rexri 8383 lenlt 8401 ltpnf 10184 mnflt 10187 xrltnsym 10197 xrlttr 10199 xrltso 10200 xrre 10224 xrre3 10226 xltnegi 10239 rexadd 10256 xaddnemnf 10261 xaddnepnf 10262 xaddcom 10265 xnegdi 10272 xpncan 10275 xnpcan 10276 xleadd1a 10277 xleadd1 10279 xltadd1 10280 xltadd2 10281 xsubge0 10285 xposdif 10286 elioo4g 10338 elioc2 10340 elico2 10341 elicc2 10342 iccss 10345 iooshf 10356 iooneg 10392 icoshft 10394 qbtwnxr 10694 modqmuladdim 10806 elicc4abs 11862 icodiamlt 11948 xrmaxrecl 12023 xrmaxaddlem 12028 xrminrecl 12041 bl2in 15506 blssps 15530 blss 15531 reopnap 15649 bl2ioo 15653 blssioo 15656 sincosq2sgn 15931 sincosq3sgn 15932 sincos6thpi 15946 |
| Copyright terms: Public domain | W3C validator |