Theorem readdcli 7422

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

Step	Hyp	Ref	Expression
1		recni.1	. 2 |- A e. RR
2		axri.2	. 2 |- B e. RR
3		readdcl 7389	. 2 |- ( ( A e. RR /\ B e. RR ) -> ( A + B ) e. RR )
4	1, 2, 3	mp2an 417	1 |- ( A + B ) e. RR

Syntax hints:   e. wcel 1436  (class class class)co 5594   RRcr 7270   + caddc 7274

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia3 106  ax-addrcl 7363

This theorem is referenced by:  resubcli  7666  eqneg  8115  2re  8404  3re  8408  4re  8411  5re  8413  6re  8415  7re  8417  8re  8419  9re  8421  numltc  8811  ex-fl  11010