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Theorem nfseq 13362
 Description: Hypothesis builder for the sequence builder operation. (Contributed by Mario Carneiro, 24-Jun-2013.) (Revised by Mario Carneiro, 15-Oct-2016.)
Hypotheses
Ref Expression
nfseq.1 𝑥𝑀
nfseq.2 𝑥 +
nfseq.3 𝑥𝐹
Assertion
Ref Expression
nfseq 𝑥seq𝑀( + , 𝐹)

Proof of Theorem nfseq
Dummy variables 𝑤 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-seq 13353 . 2 seq𝑀( + , 𝐹) = (rec((𝑧 ∈ V, 𝑤 ∈ V ↦ ⟨(𝑧 + 1), (𝑤 + (𝐹‘(𝑧 + 1)))⟩), ⟨𝑀, (𝐹𝑀)⟩) “ ω)
2 nfcv 2974 . . . . 5 𝑥V
3 nfcv 2974 . . . . . 6 𝑥(𝑧 + 1)
4 nfcv 2974 . . . . . . 7 𝑥𝑤
5 nfseq.2 . . . . . . 7 𝑥 +
6 nfseq.3 . . . . . . . 8 𝑥𝐹
76, 3nffv 6653 . . . . . . 7 𝑥(𝐹‘(𝑧 + 1))
84, 5, 7nfov 7160 . . . . . 6 𝑥(𝑤 + (𝐹‘(𝑧 + 1)))
93, 8nfop 4792 . . . . 5 𝑥⟨(𝑧 + 1), (𝑤 + (𝐹‘(𝑧 + 1)))⟩
102, 2, 9nfmpo 7210 . . . 4 𝑥(𝑧 ∈ V, 𝑤 ∈ V ↦ ⟨(𝑧 + 1), (𝑤 + (𝐹‘(𝑧 + 1)))⟩)
11 nfseq.1 . . . . 5 𝑥𝑀
126, 11nffv 6653 . . . . 5 𝑥(𝐹𝑀)
1311, 12nfop 4792 . . . 4 𝑥𝑀, (𝐹𝑀)⟩
1410, 13nfrdg 8025 . . 3 𝑥rec((𝑧 ∈ V, 𝑤 ∈ V ↦ ⟨(𝑧 + 1), (𝑤 + (𝐹‘(𝑧 + 1)))⟩), ⟨𝑀, (𝐹𝑀)⟩)
15 nfcv 2974 . . 3 𝑥ω
1614, 15nfima 5910 . 2 𝑥(rec((𝑧 ∈ V, 𝑤 ∈ V ↦ ⟨(𝑧 + 1), (𝑤 + (𝐹‘(𝑧 + 1)))⟩), ⟨𝑀, (𝐹𝑀)⟩) “ ω)
171, 16nfcxfr 2972 1 𝑥seq𝑀( + , 𝐹)
 Colors of variables: wff setvar class Syntax hints:  Ⅎwnfc 2958  Vcvv 3471  ⟨cop 4546   “ cima 5531  ‘cfv 6328  (class class class)co 7130   ∈ cmpo 7132  ωcom 7555  reccrdg 8020  1c1 10515   + caddc 10517  seqcseq 13352 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 1971  ax-7 2016  ax-8 2117  ax-9 2125  ax-10 2146  ax-11 2162  ax-12 2178  ax-ext 2793 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2071  df-clab 2800  df-cleq 2814  df-clel 2892  df-nfc 2960  df-ral 3131  df-rex 3132  df-rab 3135  df-v 3473  df-dif 3913  df-un 3915  df-in 3917  df-ss 3927  df-nul 4267  df-if 4441  df-sn 4541  df-pr 4543  df-op 4547  df-uni 4812  df-br 5040  df-opab 5102  df-mpt 5120  df-xp 5534  df-cnv 5536  df-dm 5538  df-rn 5539  df-res 5540  df-ima 5541  df-pred 6121  df-iota 6287  df-fv 6336  df-ov 7133  df-oprab 7134  df-mpo 7135  df-wrecs 7922  df-recs 7983  df-rdg 8021  df-seq 13353 This theorem is referenced by:  seqof2  13412  nfsum1  15025  nfsum  15026  nfsumOLD  15027  nfcprod1  15243  nfcprod  15244  lgamgulm2  25599  binomcxplemdvbinom  40842  binomcxplemdvsum  40844  binomcxplemnotnn0  40845  fmuldfeqlem1  42017  fmuldfeq  42018  sumnnodd  42065  stoweidlem51  42486
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