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Theorem rp-oelim2 43757
Description: The power of an ordinal at least as large as two with a limit ordinal on thr right is a limit ordinal. Lemma 3.21 of [Schloeder] p. 10. See oelimcl 8530. (Contributed by RP, 30-Jan-2025.)
Assertion
Ref Expression
rp-oelim2 (((𝐴 ∈ On ∧ 1o𝐴) ∧ (Lim 𝐵𝐵𝑉)) → Lim (𝐴o 𝐵))

Proof of Theorem rp-oelim2
StepHypRef Expression
1 ondif2 8431 . . 3 (𝐴 ∈ (On ∖ 2o) ↔ (𝐴 ∈ On ∧ 1o𝐴))
21biimpri 228 . 2 ((𝐴 ∈ On ∧ 1o𝐴) → 𝐴 ∈ (On ∖ 2o))
3 pm3.22 459 . 2 ((Lim 𝐵𝐵𝑉) → (𝐵𝑉 ∧ Lim 𝐵))
4 oelimcl 8530 . 2 ((𝐴 ∈ (On ∖ 2o) ∧ (𝐵𝑉 ∧ Lim 𝐵)) → Lim (𝐴o 𝐵))
52, 3, 4syl2an 597 1 (((𝐴 ∈ On ∧ 1o𝐴) ∧ (Lim 𝐵𝐵𝑉)) → Lim (𝐴o 𝐵))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  wcel 2114  cdif 3887  Oncon0 6318  Lim wlim 6319  (class class class)co 7361  1oc1o 8392  2oc2o 8393  o coe 8398
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5213  ax-sep 5232  ax-nul 5242  ax-pr 5371  ax-un 7683
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-ral 3053  df-rex 3063  df-reu 3344  df-rab 3391  df-v 3432  df-sbc 3730  df-csb 3839  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-pss 3910  df-nul 4275  df-if 4468  df-pw 4544  df-sn 4569  df-pr 4571  df-op 4575  df-uni 4852  df-iun 4936  df-br 5087  df-opab 5149  df-mpt 5168  df-tr 5194  df-id 5520  df-eprel 5525  df-po 5533  df-so 5534  df-fr 5578  df-we 5580  df-xp 5631  df-rel 5632  df-cnv 5633  df-co 5634  df-dm 5635  df-rn 5636  df-res 5637  df-ima 5638  df-pred 6260  df-ord 6321  df-on 6322  df-lim 6323  df-suc 6324  df-iota 6449  df-fun 6495  df-fn 6496  df-f 6497  df-f1 6498  df-fo 6499  df-f1o 6500  df-fv 6501  df-ov 7364  df-oprab 7365  df-mpo 7366  df-om 7812  df-2nd 7937  df-frecs 8225  df-wrecs 8256  df-recs 8305  df-rdg 8343  df-1o 8399  df-2o 8400  df-oadd 8403  df-omul 8404  df-oexp 8405
This theorem is referenced by: (None)
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