| 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 8216 | . 2 ⊢ ℝ ⊆ ℝ* | |
| 2 | 1 | sseli 3221 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ*) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2200 ℝcr 8024 ℝ*cxr 8206 |
| 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-v 2802 df-un 3202 df-in 3204 df-ss 3211 df-xr 8211 |
| This theorem is referenced by: rexri 8230 lenlt 8248 ltpnf 10008 mnflt 10011 xrltnsym 10021 xrlttr 10023 xrltso 10024 xrre 10048 xrre3 10050 xltnegi 10063 rexadd 10080 xaddnemnf 10085 xaddnepnf 10086 xaddcom 10089 xnegdi 10096 xpncan 10099 xnpcan 10100 xleadd1a 10101 xleadd1 10103 xltadd1 10104 xltadd2 10105 xsubge0 10109 xposdif 10110 elioo4g 10162 elioc2 10164 elico2 10165 elicc2 10166 iccss 10169 iooshf 10180 iooneg 10216 icoshft 10218 qbtwnxr 10510 modqmuladdim 10622 elicc4abs 11648 icodiamlt 11734 xrmaxrecl 11809 xrmaxaddlem 11814 xrminrecl 11827 bl2in 15120 blssps 15144 blss 15145 reopnap 15263 bl2ioo 15267 blssioo 15270 sincosq2sgn 15544 sincosq3sgn 15545 sincos6thpi 15559 |
| Copyright terms: Public domain | W3C validator |