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Theorem rpgecld 10065
Description: A number greater or equal to a positive real is positive real. (Contributed by Mario Carneiro, 28-May-2016.)
Hypotheses
Ref Expression
rpgecld.1  |-  ( ph  ->  A  e.  RR )
rpgecld.2  |-  ( ph  ->  B  e.  RR+ )
rpgecld.3  |-  ( ph  ->  B  <_  A )
Assertion
Ref Expression
rpgecld  |-  ( ph  ->  A  e.  RR+ )

Proof of Theorem rpgecld
StepHypRef Expression
1 rpgecld.2 . 2  |-  ( ph  ->  B  e.  RR+ )
2 rpgecld.1 . 2  |-  ( ph  ->  A  e.  RR )
3 rpgecld.3 . 2  |-  ( ph  ->  B  <_  A )
4 rpgecl 10011 . 2  |-  ( ( B  e.  RR+  /\  A  e.  RR  /\  B  <_  A )  ->  A  e.  RR+ )
51, 2, 3, 4syl3anc 1274 1  |-  ( ph  ->  A  e.  RR+ )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2203   class class class wbr 4108   RRcr 8122    <_ cle 8305   RR+crp 9982
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-in1 619  ax-in2 620  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-13 2205  ax-14 2206  ax-ext 2214  ax-sep 4227  ax-pow 4286  ax-pr 4321  ax-un 4553  ax-setind 4658  ax-cnex 8214  ax-resscn 8215  ax-1re 8217  ax-addrcl 8220  ax-rnegex 8232  ax-pre-ltwlin 8236
This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-fal 1404  df-nf 1510  df-sb 1812  df-eu 2083  df-mo 2084  df-clab 2219  df-cleq 2225  df-clel 2228  df-nfc 2373  df-ne 2413  df-nel 2508  df-ral 2525  df-rex 2526  df-rab 2529  df-v 2814  df-dif 3212  df-un 3214  df-in 3216  df-ss 3223  df-pw 3670  df-sn 3694  df-pr 3695  df-op 3697  df-uni 3914  df-br 4109  df-opab 4171  df-xp 4754  df-cnv 4756  df-pnf 8306  df-mnf 8307  df-xr 8308  df-ltxr 8309  df-le 8310  df-rp 9983
This theorem is referenced by:  isumrpcl  12173  rpabscxpbnd  15792
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