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Theorem ltpnfd 9681
Description: Any (finite) real is less than plus infinity. (Contributed by Glauco Siliprandi, 11-Dec-2019.)
Hypothesis
Ref Expression
ltpnfd.a  |-  ( ph  ->  A  e.  RR )
Assertion
Ref Expression
ltpnfd  |-  ( ph  ->  A  < +oo )

Proof of Theorem ltpnfd
StepHypRef Expression
1 ltpnfd.a . 2  |-  ( ph  ->  A  e.  RR )
2 ltpnf 9680 . 2  |-  ( A  e.  RR  ->  A  < +oo )
31, 2syl 14 1  |-  ( ph  ->  A  < +oo )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2128   class class class wbr 3965   RRcr 7725   +oocpnf 7903    < clt 7906
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 699  ax-5 1427  ax-7 1428  ax-gen 1429  ax-ie1 1473  ax-ie2 1474  ax-8 1484  ax-10 1485  ax-11 1486  ax-i12 1487  ax-bndl 1489  ax-4 1490  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-13 2130  ax-14 2131  ax-ext 2139  ax-sep 4082  ax-pow 4135  ax-pr 4169  ax-un 4393  ax-cnex 7817
This theorem depends on definitions:  df-bi 116  df-3an 965  df-tru 1338  df-nf 1441  df-sb 1743  df-eu 2009  df-mo 2010  df-clab 2144  df-cleq 2150  df-clel 2153  df-nfc 2288  df-ral 2440  df-rex 2441  df-v 2714  df-un 3106  df-in 3108  df-ss 3115  df-pw 3545  df-sn 3566  df-pr 3567  df-op 3569  df-uni 3773  df-br 3966  df-opab 4026  df-xp 4591  df-pnf 7908  df-xr 7910  df-ltxr 7911
This theorem is referenced by:  fprodge1  11529
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