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Theorem rp-oelim2 43736
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 8536. (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 8437 . . 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 8536 . 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 3886  Oncon0 6323  Lim wlim 6324  (class class class)co 7367  1oc1o 8398  2oc2o 8399  o coe 8404
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 2708  ax-rep 5212  ax-sep 5231  ax-nul 5241  ax-pr 5375  ax-un 7689
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 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3062  df-reu 3343  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-pss 3909  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-iun 4935  df-br 5086  df-opab 5148  df-mpt 5167  df-tr 5193  df-id 5526  df-eprel 5531  df-po 5539  df-so 5540  df-fr 5584  df-we 5586  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-pred 6265  df-ord 6326  df-on 6327  df-lim 6328  df-suc 6329  df-iota 6454  df-fun 6500  df-fn 6501  df-f 6502  df-f1 6503  df-fo 6504  df-f1o 6505  df-fv 6506  df-ov 7370  df-oprab 7371  df-mpo 7372  df-om 7818  df-2nd 7943  df-frecs 8231  df-wrecs 8262  df-recs 8311  df-rdg 8349  df-1o 8405  df-2o 8406  df-oadd 8409  df-omul 8410  df-oexp 8411
This theorem is referenced by: (None)
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