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Theorem nn0nepnfd 9050
Description: No standard nonnegative integer equals positive infinity, deduction form. (Contributed by AV, 10-Dec-2020.)
Hypothesis
Ref Expression
nn0xnn0d.1  |-  ( ph  ->  A  e.  NN0 )
Assertion
Ref Expression
nn0nepnfd  |-  ( ph  ->  A  =/= +oo )

Proof of Theorem nn0nepnfd
StepHypRef Expression
1 nn0xnn0d.1 . 2  |-  ( ph  ->  A  e.  NN0 )
2 nn0nepnf 9048 . 2  |-  ( A  e.  NN0  ->  A  =/= +oo )
31, 2syl 14 1  |-  ( ph  ->  A  =/= +oo )
Colors of variables: wff set class
Syntax hints:    -> wi 4    e. wcel 1480    =/= wne 2308   +oocpnf 7797   NN0cn0 8977
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 603  ax-in2 604  ax-io 698  ax-5 1423  ax-7 1424  ax-gen 1425  ax-ie1 1469  ax-ie2 1470  ax-8 1482  ax-10 1483  ax-11 1484  ax-i12 1485  ax-bndl 1486  ax-4 1487  ax-13 1491  ax-14 1492  ax-17 1506  ax-i9 1510  ax-ial 1514  ax-i5r 1515  ax-ext 2121  ax-sep 4046  ax-un 4355  ax-cnex 7711  ax-resscn 7712  ax-1re 7714  ax-addrcl 7717  ax-rnegex 7729
This theorem depends on definitions:  df-bi 116  df-tru 1334  df-fal 1337  df-nf 1437  df-sb 1736  df-clab 2126  df-cleq 2132  df-clel 2135  df-nfc 2270  df-ne 2309  df-nel 2404  df-ral 2421  df-rex 2422  df-rab 2425  df-v 2688  df-un 3075  df-in 3077  df-ss 3084  df-pw 3512  df-sn 3533  df-uni 3737  df-int 3772  df-pnf 7802  df-inn 8721  df-n0 8978
This theorem is referenced by: (None)
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