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Theorem 0n0s 28392
Description: Peano postulate: 0s is a non-negative surreal integer. (Contributed by Scott Fenton, 17-Mar-2025.)
Assertion
Ref Expression
0n0s 0s ∈ ℕ0s

Proof of Theorem 0n0s
StepHypRef Expression
1 df-n0s 28377 . . . 4 0s = (rec((𝑥 ∈ V ↦ (𝑥 +s 1s )), 0s ) “ ω)
21a1i 11 . . 3 (⊤ → ℕ0s = (rec((𝑥 ∈ V ↦ (𝑥 +s 1s )), 0s ) “ ω))
3 0no 27872 . . . 4 0s No
43a1i 11 . . 3 (⊤ → 0s No )
52, 4noseq0 28353 . 2 (⊤ → 0s ∈ ℕ0s)
65mptru 1561 1 0s ∈ ℕ0s
Colors of variables: wff setvar class
Syntax hints:   = wceq 1554  wtru 1555  wcel 2136  Vcvv 3448  cmpt 5175  cima 5643  (class class class)co 7385  ωcom 7835  reccrdg 8368   No csur 27674   0s c0s 27868   1s c1s 27869   +s cadds 28022  0scn0s 28375
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1809  ax-4 1823  ax-5 1924  ax-6 1981  ax-7 2022  ax-8 2138  ax-9 2146  ax-10 2169  ax-11 2185  ax-12 2206  ax-ext 2728  ax-rep 5221  ax-sep 5240  ax-nul 5250  ax-pow 5316  ax-pr 5384  ax-un 7707
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 857  df-3or 1096  df-3an 1097  df-tru 1557  df-fal 1567  df-ex 1794  df-nf 1798  df-sb 2085  df-mo 2560  df-eu 2590  df-clab 2735  df-cleq 2748  df-clel 2831  df-nfc 2905  df-ne 2952  df-ral 3071  df-rex 3081  df-rmo 3361  df-reu 3362  df-rab 3409  df-v 3450  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-pss 3919  df-nul 4281  df-if 4475  df-pw 4551  df-sn 4577  df-pr 4579  df-tp 4581  df-op 4583  df-uni 4860  df-int 4900  df-iun 4945  df-br 5095  df-opab 5157  df-mpt 5176  df-tr 5202  df-id 5535  df-eprel 5540  df-po 5548  df-so 5549  df-fr 5593  df-we 5595  df-xp 5646  df-rel 5647  df-cnv 5648  df-co 5649  df-dm 5650  df-rn 5651  df-res 5652  df-ima 5653  df-pred 6277  df-ord 6338  df-on 6339  df-lim 6340  df-suc 6341  df-iota 6466  df-fun 6512  df-fn 6513  df-f 6514  df-f1 6515  df-fo 6516  df-f1o 6517  df-fv 6518  df-riota 7342  df-ov 7388  df-oprab 7389  df-mpo 7390  df-om 7836  df-2nd 7960  df-frecs 8250  df-wrecs 8281  df-recs 8330  df-rdg 8369  df-1o 8425  df-2o 8426  df-no 27677  df-lts 27678  df-bday 27679  df-slts 27821  df-cuts 27823  df-0s 27870  df-n0s 28377
This theorem is referenced by:  dfn0s2  28395  n0mulscl  28408  1n0s  28411  n0fincut  28418  eln0s  28424  n0subs  28426  n0lts1e0  28431  bdayn0sf1o  28433  eucliddivs  28439  n0seo  28484  bdaypw2n0bndlem  28526  bdayfinbndlem1  28530  z12bdaylem1  28533  zz12s  28538
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