Theorem nndivred

Description: A positive integer is one or greater. (Contributed by Mario Carneiro, 27-May-2016)

	Ref	Expression
Hypotheses	nndivred.1	|- ( ph -> A e. RR )
	nndivred.2	|- ( ph -> B e. NN )
Assertion	nndivred	|- ( ph -> ( A / B ) e. RR )

Proof

Step	Hyp	Ref	Expression
1		nndivred.1	|- ( ph -> A e. RR )
2		nndivred.2	|- ( ph -> B e. NN )
3		nndivre	|- ( ( A e. RR /\ B e. NN ) -> ( A / B ) e. RR )
4	1 2 3	syl2anc	|- ( ph -> ( A / B ) e. RR )