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 7802 | . 2 ⊢ ℝ ⊆ ℝ* | |
2 | 1 | sseli 3088 | 1 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ*) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1480 ℝcr 7612 ℝ*cxr 7792 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 |
This theorem depends on definitions: df-bi 116 df-tru 1334 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-nfc 2268 df-v 2683 df-un 3070 df-in 3072 df-ss 3079 df-xr 7797 |
This theorem is referenced by: rexri 7816 lenlt 7833 ltpnf 9560 mnflt 9562 xrltnsym 9572 xrlttr 9574 xrltso 9575 xrre 9596 xrre3 9598 xltnegi 9611 rexadd 9628 xaddnemnf 9633 xaddnepnf 9634 xaddcom 9637 xnegdi 9644 xpncan 9647 xnpcan 9648 xleadd1a 9649 xleadd1 9651 xltadd1 9652 xltadd2 9653 xsubge0 9657 xposdif 9658 elioo4g 9710 elioc2 9712 elico2 9713 elicc2 9714 iccss 9717 iooshf 9728 iooneg 9764 icoshft 9766 qbtwnxr 10028 modqmuladdim 10133 elicc4abs 10859 icodiamlt 10945 xrmaxrecl 11017 xrmaxaddlem 11022 xrminrecl 11035 bl2in 12561 blssps 12585 blss 12586 reopnap 12696 bl2ioo 12700 blssioo 12703 sincosq2sgn 12897 sincosq3sgn 12898 sincos6thpi 12912 |
Copyright terms: Public domain | W3C validator |