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Theorem infdjuabs 9820
Description: Absorption law for addition to an infinite cardinal. (Contributed by NM, 30-Sep-2004.) (Revised by Mario Carneiro, 29-Apr-2015.)
Assertion
Ref Expression
infdjuabs ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≈ 𝐴)

Proof of Theorem infdjuabs
StepHypRef Expression
1 simp3 1140 . . . . . 6 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐵𝐴)
2 reldom 8632 . . . . . . 7 Rel ≼
32brrelex2i 5606 . . . . . 6 (𝐵𝐴𝐴 ∈ V)
4 djudom2 9797 . . . . . 6 ((𝐵𝐴𝐴 ∈ V) → (𝐴𝐵) ≼ (𝐴𝐴))
51, 3, 4syl2anc2 588 . . . . 5 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ (𝐴𝐴))
6 xp2dju 9790 . . . . 5 (2o × 𝐴) = (𝐴𝐴)
75, 6breqtrrdi 5095 . . . 4 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ (2o × 𝐴))
8 simp1 1138 . . . . 5 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐴 ∈ dom card)
9 2onn 8368 . . . . . . 7 2o ∈ ω
10 nnsdom 9269 . . . . . . 7 (2o ∈ ω → 2o ≺ ω)
11 sdomdom 8656 . . . . . . 7 (2o ≺ ω → 2o ≼ ω)
129, 10, 11mp2b 10 . . . . . 6 2o ≼ ω
13 simp2 1139 . . . . . 6 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → ω ≼ 𝐴)
14 domtr 8681 . . . . . 6 ((2o ≼ ω ∧ ω ≼ 𝐴) → 2o𝐴)
1512, 13, 14sylancr 590 . . . . 5 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 2o𝐴)
16 xpdom1g 8742 . . . . 5 ((𝐴 ∈ dom card ∧ 2o𝐴) → (2o × 𝐴) ≼ (𝐴 × 𝐴))
178, 15, 16syl2anc 587 . . . 4 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (2o × 𝐴) ≼ (𝐴 × 𝐴))
18 domtr 8681 . . . 4 (((𝐴𝐵) ≼ (2o × 𝐴) ∧ (2o × 𝐴) ≼ (𝐴 × 𝐴)) → (𝐴𝐵) ≼ (𝐴 × 𝐴))
197, 17, 18syl2anc 587 . . 3 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ (𝐴 × 𝐴))
20 infxpidm2 9631 . . . 4 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴) → (𝐴 × 𝐴) ≈ 𝐴)
21203adant3 1134 . . 3 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴 × 𝐴) ≈ 𝐴)
22 domentr 8687 . . 3 (((𝐴𝐵) ≼ (𝐴 × 𝐴) ∧ (𝐴 × 𝐴) ≈ 𝐴) → (𝐴𝐵) ≼ 𝐴)
2319, 21, 22syl2anc 587 . 2 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ 𝐴)
242brrelex1i 5605 . . . 4 (𝐵𝐴𝐵 ∈ V)
25243ad2ant3 1137 . . 3 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐵 ∈ V)
26 djudoml 9798 . . 3 ((𝐴 ∈ dom card ∧ 𝐵 ∈ V) → 𝐴 ≼ (𝐴𝐵))
278, 25, 26syl2anc 587 . 2 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐴 ≼ (𝐴𝐵))
28 sbth 8766 . 2 (((𝐴𝐵) ≼ 𝐴𝐴 ≼ (𝐴𝐵)) → (𝐴𝐵) ≈ 𝐴)
2923, 27, 28syl2anc 587 1 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≈ 𝐴)
Colors of variables: wff setvar class
Syntax hints:  wi 4  w3a 1089  wcel 2110  Vcvv 3408   class class class wbr 5053   × cxp 5549  dom cdm 5551  ωcom 7644  2oc2o 8196  cen 8623  cdom 8624  csdm 8625  cdju 9514  cardccrd 9551
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1803  ax-4 1817  ax-5 1918  ax-6 1976  ax-7 2016  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2158  ax-12 2175  ax-ext 2708  ax-rep 5179  ax-sep 5192  ax-nul 5199  ax-pow 5258  ax-pr 5322  ax-un 7523  ax-inf2 9256
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 848  df-3or 1090  df-3an 1091  df-tru 1546  df-fal 1556  df-ex 1788  df-nf 1792  df-sb 2071  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2729  df-clel 2816  df-nfc 2886  df-ne 2941  df-ral 3066  df-rex 3067  df-reu 3068  df-rmo 3069  df-rab 3070  df-v 3410  df-sbc 3695  df-csb 3812  df-dif 3869  df-un 3871  df-in 3873  df-ss 3883  df-pss 3885  df-nul 4238  df-if 4440  df-pw 4515  df-sn 4542  df-pr 4544  df-tp 4546  df-op 4548  df-uni 4820  df-int 4860  df-iun 4906  df-br 5054  df-opab 5116  df-mpt 5136  df-tr 5162  df-id 5455  df-eprel 5460  df-po 5468  df-so 5469  df-fr 5509  df-se 5510  df-we 5511  df-xp 5557  df-rel 5558  df-cnv 5559  df-co 5560  df-dm 5561  df-rn 5562  df-res 5563  df-ima 5564  df-pred 6160  df-ord 6216  df-on 6217  df-lim 6218  df-suc 6219  df-iota 6338  df-fun 6382  df-fn 6383  df-f 6384  df-f1 6385  df-fo 6386  df-f1o 6387  df-fv 6388  df-isom 6389  df-riota 7170  df-om 7645  df-1st 7761  df-2nd 7762  df-wrecs 8047  df-recs 8108  df-rdg 8146  df-1o 8202  df-2o 8203  df-er 8391  df-en 8627  df-dom 8628  df-sdom 8629  df-fin 8630  df-oi 9126  df-dju 9517  df-card 9555
This theorem is referenced by:  infunabs  9821  infdju  9822  infdif  9823
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