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Theorem nn0pnfge0 10025
Description: If a number is a nonnegative integer or positive infinity, it is greater than or equal to 0. (Contributed by Alexander van der Vekens, 6-Jan-2018.)
Assertion
Ref Expression
nn0pnfge0 ((𝑁 ∈ ℕ0𝑁 = +∞) → 0 ≤ 𝑁)

Proof of Theorem nn0pnfge0
StepHypRef Expression
1 nn0ge0 9426 . 2 (𝑁 ∈ ℕ0 → 0 ≤ 𝑁)
2 0lepnf 10024 . . 3 0 ≤ +∞
3 breq2 4092 . . 3 (𝑁 = +∞ → (0 ≤ 𝑁 ↔ 0 ≤ +∞))
42, 3mpbiri 168 . 2 (𝑁 = +∞ → 0 ≤ 𝑁)
51, 4jaoi 723 1 ((𝑁 ∈ ℕ0𝑁 = +∞) → 0 ≤ 𝑁)
Colors of variables: wff set class
Syntax hints:  wi 4  wo 715   = wceq 1397  wcel 2202   class class class wbr 4088  0cc0 8031  +∞cpnf 8210  cle 8214  0cn0 9401
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 619  ax-in2 620  ax-io 716  ax-5 1495  ax-7 1496  ax-gen 1497  ax-ie1 1541  ax-ie2 1542  ax-8 1552  ax-10 1553  ax-11 1554  ax-i12 1555  ax-bndl 1557  ax-4 1558  ax-17 1574  ax-i9 1578  ax-ial 1582  ax-i5r 1583  ax-13 2204  ax-14 2205  ax-ext 2213  ax-sep 4207  ax-pow 4264  ax-pr 4299  ax-un 4530  ax-setind 4635  ax-cnex 8122  ax-resscn 8123  ax-1cn 8124  ax-1re 8125  ax-icn 8126  ax-addcl 8127  ax-addrcl 8128  ax-mulcl 8129  ax-i2m1 8136  ax-0lt1 8137  ax-0id 8139  ax-rnegex 8140  ax-pre-ltirr 8143  ax-pre-ltwlin 8144  ax-pre-lttrn 8145  ax-pre-ltadd 8147
This theorem depends on definitions:  df-bi 117  df-3an 1006  df-tru 1400  df-fal 1403  df-nf 1509  df-sb 1811  df-eu 2082  df-mo 2083  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2363  df-ne 2403  df-nel 2498  df-ral 2515  df-rex 2516  df-rab 2519  df-v 2804  df-dif 3202  df-un 3204  df-in 3206  df-ss 3213  df-pw 3654  df-sn 3675  df-pr 3676  df-op 3678  df-uni 3894  df-int 3929  df-br 4089  df-opab 4151  df-xp 4731  df-cnv 4733  df-iota 5286  df-fv 5334  df-ov 6020  df-pnf 8215  df-mnf 8216  df-xr 8217  df-ltxr 8218  df-le 8219  df-inn 9143  df-n0 9402
This theorem is referenced by: (None)
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