ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  rpxrd GIF version

Theorem rpxrd 9937
Description: A positive real is an extended real. (Contributed by Mario Carneiro, 28-May-2016.)
Hypothesis
Ref Expression
rpred.1 (𝜑𝐴 ∈ ℝ+)
Assertion
Ref Expression
rpxrd (𝜑𝐴 ∈ ℝ*)

Proof of Theorem rpxrd
StepHypRef Expression
1 rpred.1 . . 3 (𝜑𝐴 ∈ ℝ+)
21rpred 9936 . 2 (𝜑𝐴 ∈ ℝ)
32rexrd 8234 1 (𝜑𝐴 ∈ ℝ*)
Colors of variables: wff set class
Syntax hints:  wi 4  wcel 2201  *cxr 8218  +crp 9893
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 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-ext 2212
This theorem depends on definitions:  df-bi 117  df-tru 1400  df-nf 1509  df-sb 1810  df-clab 2217  df-cleq 2223  df-clel 2226  df-nfc 2362  df-rab 2518  df-v 2803  df-un 3203  df-in 3205  df-ss 3212  df-xr 8223  df-rp 9894
This theorem is referenced by:  ssblex  15184  metequiv2  15249  metss2lem  15250  metcnp  15265  metcnpi3  15270
  Copyright terms: Public domain W3C validator