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Theorem rpxrd 10100
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 10099 . 2 (𝜑𝐴 ∈ ℝ)
32rexrd 8375 1 (𝜑𝐴 ∈ ℝ*)
Colors of variables:    wff set class
This proof depends on syntax axioms:  wi 4  wcel 2209  *cxr 8359  +crp 10056
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-rab 2537  df-v 2823  df-un 3224  df-in 3226  df-ss 3233  df-xr 8364  df-rp 10057
This theorem is used by:  ssblex  15534  metequiv2  15599  metss2lem  15600  metcnp  15615  metcnpi3  15620
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