Theorem nn0red 8236

Description: A nonnegative integer is a real number. (Contributed by Mario Carneiro, 27-May-2016.)

Hypothesis

Ref	Expression
nn0red.1	|- ( ph -> A e. NN0 )

Assertion

Ref	Expression
nn0red	|- ( ph -> A e. RR )

Proof of Theorem nn0red

Step	Hyp	Ref	Expression
1		nn0ssre 8185	. 2 |- NN0 C_ RR
2		nn0red.1	. 2 |- ( ph -> A e. NN0 )
3	1, 2	sseldi 2943	1 |- ( ph -> A e. RR )

Syntax hints:   -> wi 4   e. wcel 1393   RRcr 6888   NN0cn0 8181

This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 99  ax-ia2 100  ax-ia3 101  ax-io 630  ax-5 1336  ax-7 1337  ax-gen 1338  ax-ie1 1382  ax-ie2 1383  ax-8 1395  ax-10 1396  ax-11 1397  ax-i12 1398  ax-bndl 1399  ax-4 1400  ax-17 1419  ax-i9 1423  ax-ial 1427  ax-i5r 1428  ax-ext 2022  ax-sep 3875  ax-cnex 6975  ax-resscn 6976  ax-1re 6978  ax-addrcl 6981  ax-rnegex 6993

This theorem depends on definitions:  df-bi 110  df-tru 1246  df-nf 1350  df-sb 1646  df-clab 2027  df-cleq 2033  df-clel 2036  df-nfc 2167  df-ral 2311  df-rex 2312  df-v 2559  df-un 2922  df-in 2924  df-ss 2931  df-sn 3381  df-int 3616  df-inn 7915  df-n0 8182

This theorem is referenced by:  nn0cnd  8237  nn0readdcl  8241  nn01to3  8552  flqmulnn0  9141  expnegap0  9263  nn0seqcvgd  9880