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Theorem readdcli 7984
Description: Closure law for addition of reals. (Contributed by NM, 17-Jan-1997.)
Hypotheses
Ref Expression
recni.1  |-  A  e.  RR
axri.2  |-  B  e.  RR
Assertion
Ref Expression
readdcli  |-  ( A  +  B )  e.  RR

Proof of Theorem readdcli
StepHypRef Expression
1 recni.1 . 2  |-  A  e.  RR
2 axri.2 . 2  |-  B  e.  RR
3 readdcl 7951 . 2  |-  ( ( A  e.  RR  /\  B  e.  RR )  ->  ( A  +  B
)  e.  RR )
41, 2, 3mp2an 426 1  |-  ( A  +  B )  e.  RR
Colors of variables: wff set class
Syntax hints:    e. wcel 2158  (class class class)co 5888   RRcr 7824    + caddc 7828
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia3 108  ax-addrcl 7922
This theorem is referenced by:  resubcli  8234  eqneg  8703  2re  9003  3re  9007  4re  9010  5re  9012  6re  9014  7re  9016  8re  9018  9re  9020  numltc  9423  ef01bndlem  11778  ex-fl  14773
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