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Theorem pnfged 13152
Description: Plus infinity is an upper bound for extended reals. (Contributed by Glauco Siliprandi, 5-Feb-2022.)
Hypothesis
Ref Expression
pnfged.1 (𝜑𝐴 ∈ ℝ*)
Assertion
Ref Expression
pnfged (𝜑𝐴 ≤ +∞)

Proof of Theorem pnfged
StepHypRef Expression
1 pnfged.1 . 2 (𝜑𝐴 ∈ ℝ*)
2 pnfge 13151 . 2 (𝐴 ∈ ℝ*𝐴 ≤ +∞)
31, 2syl 18 1 (𝜑𝐴 ≤ +∞)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2149   class class class wbr 5110  +∞cpnf 11236  *cxr 11238  cle 11240
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-ext 2741  ax-sep 5258  ax-pow 5334  ax-pr 5402  ax-un 7730  ax-cnex 11152  ax-resscn 11153
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-sb 2098  df-clab 2748  df-cleq 2761  df-clel 2844  df-ne 2965  df-nel 3071  df-ral 3086  df-rex 3096  df-rab 3424  df-v 3465  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4295  df-if 4490  df-pw 4566  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4874  df-br 5111  df-opab 5175  df-xp 5665  df-cnv 5667  df-pnf 11241  df-mnf 11242  df-xr 11243  df-ltxr 11244  df-le 11245
This theorem is referenced by:  xrlimcnp  27095  lbslelsp  33929  xlimpnfvlem2  46438  xlimliminflimsup  46463  fourierdlem48  46755  fourierdlem113  46820  pimgtpnf2f  47306  pimiooltgt  47311
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