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Theorem infdjuabs 9893
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 1136 . . . . . 6 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐵𝐴)
2 reldom 8697 . . . . . . 7 Rel ≼
32brrelex2i 5635 . . . . . 6 (𝐵𝐴𝐴 ∈ V)
4 djudom2 9870 . . . . . 6 ((𝐵𝐴𝐴 ∈ V) → (𝐴𝐵) ≼ (𝐴𝐴))
51, 3, 4syl2anc2 584 . . . . 5 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ (𝐴𝐴))
6 xp2dju 9863 . . . . 5 (2o × 𝐴) = (𝐴𝐴)
75, 6breqtrrdi 5112 . . . 4 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ (2o × 𝐴))
8 simp1 1134 . . . . 5 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐴 ∈ dom card)
9 2onn 8433 . . . . . . 7 2o ∈ ω
10 nnsdom 9342 . . . . . . 7 (2o ∈ ω → 2o ≺ ω)
11 sdomdom 8723 . . . . . . 7 (2o ≺ ω → 2o ≼ ω)
129, 10, 11mp2b 10 . . . . . 6 2o ≼ ω
13 simp2 1135 . . . . . 6 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → ω ≼ 𝐴)
14 domtr 8748 . . . . . 6 ((2o ≼ ω ∧ ω ≼ 𝐴) → 2o𝐴)
1512, 13, 14sylancr 586 . . . . 5 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 2o𝐴)
16 xpdom1g 8809 . . . . 5 ((𝐴 ∈ dom card ∧ 2o𝐴) → (2o × 𝐴) ≼ (𝐴 × 𝐴))
178, 15, 16syl2anc 583 . . . 4 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (2o × 𝐴) ≼ (𝐴 × 𝐴))
18 domtr 8748 . . . 4 (((𝐴𝐵) ≼ (2o × 𝐴) ∧ (2o × 𝐴) ≼ (𝐴 × 𝐴)) → (𝐴𝐵) ≼ (𝐴 × 𝐴))
197, 17, 18syl2anc 583 . . 3 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ (𝐴 × 𝐴))
20 infxpidm2 9704 . . . 4 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴) → (𝐴 × 𝐴) ≈ 𝐴)
21203adant3 1130 . . 3 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴 × 𝐴) ≈ 𝐴)
22 domentr 8754 . . 3 (((𝐴𝐵) ≼ (𝐴 × 𝐴) ∧ (𝐴 × 𝐴) ≈ 𝐴) → (𝐴𝐵) ≼ 𝐴)
2319, 21, 22syl2anc 583 . 2 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≼ 𝐴)
242brrelex1i 5634 . . . 4 (𝐵𝐴𝐵 ∈ V)
25243ad2ant3 1133 . . 3 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐵 ∈ V)
26 djudoml 9871 . . 3 ((𝐴 ∈ dom card ∧ 𝐵 ∈ V) → 𝐴 ≼ (𝐴𝐵))
278, 25, 26syl2anc 583 . 2 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → 𝐴 ≼ (𝐴𝐵))
28 sbth 8833 . 2 (((𝐴𝐵) ≼ 𝐴𝐴 ≼ (𝐴𝐵)) → (𝐴𝐵) ≈ 𝐴)
2923, 27, 28syl2anc 583 1 ((𝐴 ∈ dom card ∧ ω ≼ 𝐴𝐵𝐴) → (𝐴𝐵) ≈ 𝐴)
Colors of variables: wff setvar class
Syntax hints:  wi 4  w3a 1085  wcel 2108  Vcvv 3422   class class class wbr 5070   × cxp 5578  dom cdm 5580  ωcom 7687  2oc2o 8261  cen 8688  cdom 8689  csdm 8690  cdju 9587  cardccrd 9624
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1799  ax-4 1813  ax-5 1914  ax-6 1972  ax-7 2012  ax-8 2110  ax-9 2118  ax-10 2139  ax-11 2156  ax-12 2173  ax-ext 2709  ax-rep 5205  ax-sep 5218  ax-nul 5225  ax-pow 5283  ax-pr 5347  ax-un 7566  ax-inf2 9329
This theorem depends on definitions:  df-bi 206  df-an 396  df-or 844  df-3or 1086  df-3an 1087  df-tru 1542  df-fal 1552  df-ex 1784  df-nf 1788  df-sb 2069  df-mo 2540  df-eu 2569  df-clab 2716  df-cleq 2730  df-clel 2817  df-nfc 2888  df-ne 2943  df-ral 3068  df-rex 3069  df-reu 3070  df-rmo 3071  df-rab 3072  df-v 3424  df-sbc 3712  df-csb 3829  df-dif 3886  df-un 3888  df-in 3890  df-ss 3900  df-pss 3902  df-nul 4254  df-if 4457  df-pw 4532  df-sn 4559  df-pr 4561  df-tp 4563  df-op 4565  df-uni 4837  df-int 4877  df-iun 4923  df-br 5071  df-opab 5133  df-mpt 5154  df-tr 5188  df-id 5480  df-eprel 5486  df-po 5494  df-so 5495  df-fr 5535  df-se 5536  df-we 5537  df-xp 5586  df-rel 5587  df-cnv 5588  df-co 5589  df-dm 5590  df-rn 5591  df-res 5592  df-ima 5593  df-pred 6191  df-ord 6254  df-on 6255  df-lim 6256  df-suc 6257  df-iota 6376  df-fun 6420  df-fn 6421  df-f 6422  df-f1 6423  df-fo 6424  df-f1o 6425  df-fv 6426  df-isom 6427  df-riota 7212  df-ov 7258  df-om 7688  df-1st 7804  df-2nd 7805  df-frecs 8068  df-wrecs 8099  df-recs 8173  df-rdg 8212  df-1o 8267  df-2o 8268  df-er 8456  df-en 8692  df-dom 8693  df-sdom 8694  df-fin 8695  df-oi 9199  df-dju 9590  df-card 9628
This theorem is referenced by:  infunabs  9894  infdju  9895  infdif  9896
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