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Theorem rpgecld 10120
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 10066 . 2  |-  ( ( B  e.  RR+  /\  A  e.  RR  /\  B  <_  A )  ->  A  e.  RR+ )
51, 2, 3, 4syl3anc 1278 1  |-  ( ph  ->  A  e.  RR+ )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 2209   class class class wbr 4128   RRcr 8172    <_ cle 8355   RR+crp 10037
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 623  ax-in2 624  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-14 2212  ax-ext 2220  ax-sep 4247  ax-pow 4309  ax-pr 4344  ax-un 4576  ax-setind 4682  ax-cnex 8264  ax-resscn 8265  ax-1re 8267  ax-addrcl 8270  ax-rnegex 8282  ax-pre-ltwlin 8286
This theorem depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-rab 2537  df-v 2823  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-pw 3690  df-sn 3714  df-pr 3715  df-op 3717  df-uni 3934  df-br 4129  df-opab 4191  df-xp 4778  df-cnv 4780  df-pnf 8356  df-mnf 8357  df-xr 8358  df-ltxr 8359  df-le 8360  df-rp 10038
This theorem is referenced by:  isumrpcl  12244  rpabscxpbnd  16025
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