| 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 8322 | . 2 ⊢ ℝ ⊆ ℝ* | |
| 2 | 1 | sseli 3236 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ*) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2205 ℝcr 8131 ℝ*cxr 8312 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-v 2817 df-un 3217 df-in 3219 df-ss 3226 df-xr 8317 |
| This theorem is referenced by: rexri 8336 lenlt 8354 ltpnf 10119 mnflt 10122 xrltnsym 10132 xrlttr 10134 xrltso 10135 xrre 10159 xrre3 10161 xltnegi 10174 rexadd 10191 xaddnemnf 10196 xaddnepnf 10197 xaddcom 10200 xnegdi 10207 xpncan 10210 xnpcan 10211 xleadd1a 10212 xleadd1 10214 xltadd1 10215 xltadd2 10216 xsubge0 10220 xposdif 10221 elioo4g 10273 elioc2 10275 elico2 10276 elicc2 10277 iccss 10280 iooshf 10291 iooneg 10327 icoshft 10329 qbtwnxr 10624 modqmuladdim 10736 elicc4abs 11787 icodiamlt 11873 xrmaxrecl 11948 xrmaxaddlem 11953 xrminrecl 11966 bl2in 15317 blssps 15341 blss 15342 reopnap 15460 bl2ioo 15464 blssioo 15467 sincosq2sgn 15741 sincosq3sgn 15742 sincos6thpi 15756 |
| Copyright terms: Public domain | W3C validator |