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Theorem sadfval 15098
Description: Define the addition of two bit sequences, using df-had 1530 and df-cad 1543 bit operations. (Contributed by Mario Carneiro, 5-Sep-2016.)
Hypotheses
Ref Expression
sadval.a (𝜑𝐴 ⊆ ℕ0)
sadval.b (𝜑𝐵 ⊆ ℕ0)
sadval.c 𝐶 = seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝐴, 𝑚𝐵, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))
Assertion
Ref Expression
sadfval (𝜑 → (𝐴 sadd 𝐵) = {𝑘 ∈ ℕ0 ∣ hadd(𝑘𝐴, 𝑘𝐵, ∅ ∈ (𝐶𝑘))})
Distinct variable groups:   𝑘,𝑐,𝑚,𝑛   𝐴,𝑐,𝑘,𝑚   𝐵,𝑐,𝑘,𝑚   𝐶,𝑘   𝜑,𝑘
Allowed substitution hints:   𝜑(𝑚,𝑛,𝑐)   𝐴(𝑛)   𝐵(𝑛)   𝐶(𝑚,𝑛,𝑐)

Proof of Theorem sadfval
Dummy variables 𝑥 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 sadval.a . . 3 (𝜑𝐴 ⊆ ℕ0)
2 nn0ex 11242 . . . 4 0 ∈ V
32elpw2 4788 . . 3 (𝐴 ∈ 𝒫 ℕ0𝐴 ⊆ ℕ0)
41, 3sylibr 224 . 2 (𝜑𝐴 ∈ 𝒫 ℕ0)
5 sadval.b . . 3 (𝜑𝐵 ⊆ ℕ0)
62elpw2 4788 . . 3 (𝐵 ∈ 𝒫 ℕ0𝐵 ⊆ ℕ0)
75, 6sylibr 224 . 2 (𝜑𝐵 ∈ 𝒫 ℕ0)
8 simpl 473 . . . . . 6 ((𝑥 = 𝐴𝑦 = 𝐵) → 𝑥 = 𝐴)
98eleq2d 2684 . . . . 5 ((𝑥 = 𝐴𝑦 = 𝐵) → (𝑘𝑥𝑘𝐴))
10 simpr 477 . . . . . 6 ((𝑥 = 𝐴𝑦 = 𝐵) → 𝑦 = 𝐵)
1110eleq2d 2684 . . . . 5 ((𝑥 = 𝐴𝑦 = 𝐵) → (𝑘𝑦𝑘𝐵))
12 simp1l 1083 . . . . . . . . . . . . 13 (((𝑥 = 𝐴𝑦 = 𝐵) ∧ 𝑐 ∈ 2𝑜𝑚 ∈ ℕ0) → 𝑥 = 𝐴)
1312eleq2d 2684 . . . . . . . . . . . 12 (((𝑥 = 𝐴𝑦 = 𝐵) ∧ 𝑐 ∈ 2𝑜𝑚 ∈ ℕ0) → (𝑚𝑥𝑚𝐴))
14 simp1r 1084 . . . . . . . . . . . . 13 (((𝑥 = 𝐴𝑦 = 𝐵) ∧ 𝑐 ∈ 2𝑜𝑚 ∈ ℕ0) → 𝑦 = 𝐵)
1514eleq2d 2684 . . . . . . . . . . . 12 (((𝑥 = 𝐴𝑦 = 𝐵) ∧ 𝑐 ∈ 2𝑜𝑚 ∈ ℕ0) → (𝑚𝑦𝑚𝐵))
16 biidd 252 . . . . . . . . . . . 12 (((𝑥 = 𝐴𝑦 = 𝐵) ∧ 𝑐 ∈ 2𝑜𝑚 ∈ ℕ0) → (∅ ∈ 𝑐 ↔ ∅ ∈ 𝑐))
1713, 15, 16cadbi123d 1546 . . . . . . . . . . 11 (((𝑥 = 𝐴𝑦 = 𝐵) ∧ 𝑐 ∈ 2𝑜𝑚 ∈ ℕ0) → (cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐) ↔ cadd(𝑚𝐴, 𝑚𝐵, ∅ ∈ 𝑐)))
1817ifbid 4080 . . . . . . . . . 10 (((𝑥 = 𝐴𝑦 = 𝐵) ∧ 𝑐 ∈ 2𝑜𝑚 ∈ ℕ0) → if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅) = if(cadd(𝑚𝐴, 𝑚𝐵, ∅ ∈ 𝑐), 1𝑜, ∅))
1918mpt2eq3dva 6672 . . . . . . . . 9 ((𝑥 = 𝐴𝑦 = 𝐵) → (𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)) = (𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝐴, 𝑚𝐵, ∅ ∈ 𝑐), 1𝑜, ∅)))
2019seqeq2d 12748 . . . . . . . 8 ((𝑥 = 𝐴𝑦 = 𝐵) → seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1)))) = seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝐴, 𝑚𝐵, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1)))))
21 sadval.c . . . . . . . 8 𝐶 = seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝐴, 𝑚𝐵, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))
2220, 21syl6eqr 2673 . . . . . . 7 ((𝑥 = 𝐴𝑦 = 𝐵) → seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1)))) = 𝐶)
2322fveq1d 6150 . . . . . 6 ((𝑥 = 𝐴𝑦 = 𝐵) → (seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))‘𝑘) = (𝐶𝑘))
2423eleq2d 2684 . . . . 5 ((𝑥 = 𝐴𝑦 = 𝐵) → (∅ ∈ (seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))‘𝑘) ↔ ∅ ∈ (𝐶𝑘)))
259, 11, 24hadbi123d 1531 . . . 4 ((𝑥 = 𝐴𝑦 = 𝐵) → (hadd(𝑘𝑥, 𝑘𝑦, ∅ ∈ (seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))‘𝑘)) ↔ hadd(𝑘𝐴, 𝑘𝐵, ∅ ∈ (𝐶𝑘))))
2625rabbidv 3177 . . 3 ((𝑥 = 𝐴𝑦 = 𝐵) → {𝑘 ∈ ℕ0 ∣ hadd(𝑘𝑥, 𝑘𝑦, ∅ ∈ (seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))‘𝑘))} = {𝑘 ∈ ℕ0 ∣ hadd(𝑘𝐴, 𝑘𝐵, ∅ ∈ (𝐶𝑘))})
27 df-sad 15097 . . 3 sadd = (𝑥 ∈ 𝒫 ℕ0, 𝑦 ∈ 𝒫 ℕ0 ↦ {𝑘 ∈ ℕ0 ∣ hadd(𝑘𝑥, 𝑘𝑦, ∅ ∈ (seq0((𝑐 ∈ 2𝑜, 𝑚 ∈ ℕ0 ↦ if(cadd(𝑚𝑥, 𝑚𝑦, ∅ ∈ 𝑐), 1𝑜, ∅)), (𝑛 ∈ ℕ0 ↦ if(𝑛 = 0, ∅, (𝑛 − 1))))‘𝑘))})
282rabex 4773 . . 3 {𝑘 ∈ ℕ0 ∣ hadd(𝑘𝐴, 𝑘𝐵, ∅ ∈ (𝐶𝑘))} ∈ V
2926, 27, 28ovmpt2a 6744 . 2 ((𝐴 ∈ 𝒫 ℕ0𝐵 ∈ 𝒫 ℕ0) → (𝐴 sadd 𝐵) = {𝑘 ∈ ℕ0 ∣ hadd(𝑘𝐴, 𝑘𝐵, ∅ ∈ (𝐶𝑘))})
304, 7, 29syl2anc 692 1 (𝜑 → (𝐴 sadd 𝐵) = {𝑘 ∈ ℕ0 ∣ hadd(𝑘𝐴, 𝑘𝐵, ∅ ∈ (𝐶𝑘))})
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 384  w3a 1036   = wceq 1480  haddwhad 1529  caddwcad 1542  wcel 1987  {crab 2911  wss 3555  c0 3891  ifcif 4058  𝒫 cpw 4130  cmpt 4673  cfv 5847  (class class class)co 6604  cmpt2 6606  1𝑜c1o 7498  2𝑜c2o 7499  0cc0 9880  1c1 9881  cmin 10210  0cn0 11236  seqcseq 12741   sadd csad 15066
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-sep 4741  ax-nul 4749  ax-pow 4803  ax-pr 4867  ax-un 6902  ax-cnex 9936  ax-resscn 9937  ax-1cn 9938  ax-icn 9939  ax-addcl 9940  ax-addrcl 9941  ax-mulcl 9942  ax-mulrcl 9943  ax-i2m1 9948  ax-1ne0 9949  ax-rrecex 9952  ax-cnre 9953
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-xor 1462  df-tru 1483  df-had 1530  df-cad 1543  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-ral 2912  df-rex 2913  df-reu 2914  df-rab 2916  df-v 3188  df-sbc 3418  df-csb 3515  df-dif 3558  df-un 3560  df-in 3562  df-ss 3569  df-pss 3571  df-nul 3892  df-if 4059  df-pw 4132  df-sn 4149  df-pr 4151  df-tp 4153  df-op 4155  df-uni 4403  df-iun 4487  df-br 4614  df-opab 4674  df-mpt 4675  df-tr 4713  df-eprel 4985  df-id 4989  df-po 4995  df-so 4996  df-fr 5033  df-we 5035  df-xp 5080  df-rel 5081  df-cnv 5082  df-co 5083  df-dm 5084  df-rn 5085  df-res 5086  df-ima 5087  df-pred 5639  df-ord 5685  df-on 5686  df-lim 5687  df-suc 5688  df-iota 5810  df-fun 5849  df-fn 5850  df-f 5851  df-f1 5852  df-fo 5853  df-f1o 5854  df-fv 5855  df-ov 6607  df-oprab 6608  df-mpt2 6609  df-om 7013  df-wrecs 7352  df-recs 7413  df-rdg 7451  df-nn 10965  df-n0 11237  df-seq 12742  df-sad 15097
This theorem is referenced by:  sadval  15102  sadadd2lem  15105  sadadd3  15107  sadcl  15108  sadcom  15109
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