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Theorem smflimmpt 43842
 Description: The limit of a sequence of sigma-measurable functions is sigma-measurable. Proposition 121F (a) of [Fremlin1] p. 38 . Notice that every function in the sequence can have a different (partial) domain, and the domain of convergence can be decidedly irregular (Remark 121G of [Fremlin1] p. 39 ). 𝐴 can contain 𝑚 as a free variable, in other words it can be thought as an indexed collection 𝐴(𝑚). 𝐵 can be thought as a collection with two indices 𝐵(𝑚, 𝑥). (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
smflimmpt.p 𝑚𝜑
smflimmpt.x 𝑥𝜑
smflimmpt.n 𝑛𝜑
smflimmpt.m (𝜑𝑀 ∈ ℤ)
smflimmpt.z 𝑍 = (ℤ𝑀)
smflimmpt.a ((𝜑𝑚𝑍) → 𝐴𝑉)
smflimmpt.b ((𝜑𝑚𝑍𝑥𝐴) → 𝐵𝑊)
smflimmpt.s (𝜑𝑆 ∈ SAlg)
smflimmpt.l ((𝜑𝑚𝑍) → (𝑥𝐴𝐵) ∈ (SMblFn‘𝑆))
smflimmpt.d 𝐷 = {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ }
smflimmpt.g 𝐺 = (𝑥𝐷 ↦ ( ⇝ ‘(𝑚𝑍𝐵)))
Assertion
Ref Expression
smflimmpt (𝜑𝐺 ∈ (SMblFn‘𝑆))
Distinct variable groups:   𝐴,𝑛,𝑥   𝐵,𝑛   𝑆,𝑚,𝑛   𝑚,𝑍,𝑛,𝑥
Allowed substitution hints:   𝜑(𝑥,𝑚,𝑛)   𝐴(𝑚)   𝐵(𝑥,𝑚)   𝐷(𝑥,𝑚,𝑛)   𝑆(𝑥)   𝐺(𝑥,𝑚,𝑛)   𝑀(𝑥,𝑚,𝑛)   𝑉(𝑥,𝑚,𝑛)   𝑊(𝑥,𝑚,𝑛)

Proof of Theorem smflimmpt
StepHypRef Expression
1 smflimmpt.g . . . 4 𝐺 = (𝑥𝐷 ↦ ( ⇝ ‘(𝑚𝑍𝐵)))
21a1i 11 . . 3 (𝜑𝐺 = (𝑥𝐷 ↦ ( ⇝ ‘(𝑚𝑍𝐵))))
3 smflimmpt.x . . . 4 𝑥𝜑
4 smflimmpt.d . . . . . 6 𝐷 = {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ }
54a1i 11 . . . . 5 (𝜑𝐷 = {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ })
6 smflimmpt.n . . . . . . . . . . . . . 14 𝑛𝜑
7 smflimmpt.p . . . . . . . . . . . . . . . 16 𝑚𝜑
8 nfv 1915 . . . . . . . . . . . . . . . 16 𝑚 𝑛𝑍
97, 8nfan 1900 . . . . . . . . . . . . . . 15 𝑚(𝜑𝑛𝑍)
10 smflimmpt.z . . . . . . . . . . . . . . . . . . . 20 𝑍 = (ℤ𝑀)
1110uztrn2 12314 . . . . . . . . . . . . . . . . . . 19 ((𝑛𝑍𝑚 ∈ (ℤ𝑛)) → 𝑚𝑍)
1211adantll 713 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝑚𝑍)
13 simpll 766 . . . . . . . . . . . . . . . . . . 19 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝜑)
14 smflimmpt.a . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝑚𝑍) → 𝐴𝑉)
1514mptexd 6984 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑚𝑍) → (𝑥𝐴𝐵) ∈ V)
1613, 12, 15syl2anc 587 . . . . . . . . . . . . . . . . . 18 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → (𝑥𝐴𝐵) ∈ V)
17 eqid 2758 . . . . . . . . . . . . . . . . . . 19 (𝑚𝑍 ↦ (𝑥𝐴𝐵)) = (𝑚𝑍 ↦ (𝑥𝐴𝐵))
1817fvmpt2 6775 . . . . . . . . . . . . . . . . . 18 ((𝑚𝑍 ∧ (𝑥𝐴𝐵) ∈ V) → ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) = (𝑥𝐴𝐵))
1912, 16, 18syl2anc 587 . . . . . . . . . . . . . . . . 17 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) = (𝑥𝐴𝐵))
2019dmeqd 5751 . . . . . . . . . . . . . . . 16 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) = dom (𝑥𝐴𝐵))
21 nfv 1915 . . . . . . . . . . . . . . . . . . . 20 𝑥 𝑛𝑍
223, 21nfan 1900 . . . . . . . . . . . . . . . . . . 19 𝑥(𝜑𝑛𝑍)
23 nfv 1915 . . . . . . . . . . . . . . . . . . 19 𝑥 𝑚 ∈ (ℤ𝑛)
2422, 23nfan 1900 . . . . . . . . . . . . . . . . . 18 𝑥((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛))
25 simplll 774 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) ∧ 𝑥𝐴) → 𝜑)
2612adantr 484 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) ∧ 𝑥𝐴) → 𝑚𝑍)
27 simpr 488 . . . . . . . . . . . . . . . . . . 19 ((((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) ∧ 𝑥𝐴) → 𝑥𝐴)
28 smflimmpt.b . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑚𝑍𝑥𝐴) → 𝐵𝑊)
2925, 26, 27, 28syl3anc 1368 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) ∧ 𝑥𝐴) → 𝐵𝑊)
30 eqid 2758 . . . . . . . . . . . . . . . . . 18 (𝑥𝐴𝐵) = (𝑥𝐴𝐵)
3124, 29, 30fnmptd 6477 . . . . . . . . . . . . . . . . 17 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → (𝑥𝐴𝐵) Fn 𝐴)
3231fndmd 6443 . . . . . . . . . . . . . . . 16 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → dom (𝑥𝐴𝐵) = 𝐴)
3320, 32eqtr2d 2794 . . . . . . . . . . . . . . 15 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝐴 = dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
349, 33iineq2d 4909 . . . . . . . . . . . . . 14 ((𝜑𝑛𝑍) → 𝑚 ∈ (ℤ𝑛)𝐴 = 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
356, 34iuneq2df 42088 . . . . . . . . . . . . 13 (𝜑 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 = 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
36 simpr 488 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑚𝑍) → 𝑚𝑍)
3736, 15, 18syl2anc 587 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑚𝑍) → ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) = (𝑥𝐴𝐵))
3837eqcomd 2764 . . . . . . . . . . . . . . . . 17 ((𝜑𝑚𝑍) → (𝑥𝐴𝐵) = ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
3938dmeqd 5751 . . . . . . . . . . . . . . . 16 ((𝜑𝑚𝑍) → dom (𝑥𝐴𝐵) = dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
4013, 12, 39syl2anc 587 . . . . . . . . . . . . . . 15 (((𝜑𝑛𝑍) ∧ 𝑚 ∈ (ℤ𝑛)) → dom (𝑥𝐴𝐵) = dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
419, 40iineq2d 4909 . . . . . . . . . . . . . 14 ((𝜑𝑛𝑍) → 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) = 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
426, 41iuneq2df 42088 . . . . . . . . . . . . 13 (𝜑 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) = 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚))
4335, 42eqtr4d 2796 . . . . . . . . . . . 12 (𝜑 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 = 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵))
4443eleq2d 2837 . . . . . . . . . . 11 (𝜑 → (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵)))
4544biimpa 480 . . . . . . . . . 10 ((𝜑𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴) → 𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵))
4645adantrr 716 . . . . . . . . 9 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ )) → 𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵))
47 eliun 4890 . . . . . . . . . . . . 13 (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ↔ ∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
4847biimpi 219 . . . . . . . . . . . 12 (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 → ∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
4948adantl 485 . . . . . . . . . . 11 ((𝜑𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴) → ∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
5049adantrr 716 . . . . . . . . . 10 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ )) → ∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
51 nfv 1915 . . . . . . . . . . . . 13 𝑛(𝑚𝑍𝐵) ∈ dom ⇝
526, 51nfan 1900 . . . . . . . . . . . 12 𝑛(𝜑 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ )
53 nfv 1915 . . . . . . . . . . . 12 𝑛(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝
54 simpllr 775 . . . . . . . . . . . . . 14 ((((𝜑 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ) ∧ 𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → (𝑚𝑍𝐵) ∈ dom ⇝ )
55 nfcv 2919 . . . . . . . . . . . . . . . . . 18 𝑚𝑥
56 nfii1 4921 . . . . . . . . . . . . . . . . . 18 𝑚 𝑚 ∈ (ℤ𝑛)𝐴
5755, 56nfel 2933 . . . . . . . . . . . . . . . . 17 𝑚 𝑥 𝑚 ∈ (ℤ𝑛)𝐴
589, 57nfan 1900 . . . . . . . . . . . . . . . 16 𝑚((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
5910eluzelz2 42441 . . . . . . . . . . . . . . . . 17 (𝑛𝑍𝑛 ∈ ℤ)
6059ad2antlr 726 . . . . . . . . . . . . . . . 16 (((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → 𝑛 ∈ ℤ)
61 eqid 2758 . . . . . . . . . . . . . . . 16 (ℤ𝑛) = (ℤ𝑛)
6210fvexi 6677 . . . . . . . . . . . . . . . . 17 𝑍 ∈ V
6362a1i 11 . . . . . . . . . . . . . . . 16 (((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → 𝑍 ∈ V)
6410uzssd3 42464 . . . . . . . . . . . . . . . . 17 (𝑛𝑍 → (ℤ𝑛) ⊆ 𝑍)
6564ad2antlr 726 . . . . . . . . . . . . . . . 16 (((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → (ℤ𝑛) ⊆ 𝑍)
66 fvexd 6678 . . . . . . . . . . . . . . . 16 ((((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → ((𝑥𝐴𝐵)‘𝑥) ∈ V)
67 eliinid 42155 . . . . . . . . . . . . . . . . . 18 ((𝑥 𝑚 ∈ (ℤ𝑛)𝐴𝑚 ∈ (ℤ𝑛)) → 𝑥𝐴)
6867adantll 713 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝑥𝐴)
6913adantlr 714 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝜑)
7012adantlr 714 . . . . . . . . . . . . . . . . . 18 ((((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝑚𝑍)
7169, 70, 68, 28syl3anc 1368 . . . . . . . . . . . . . . . . 17 ((((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝐵𝑊)
7230fvmpt2 6775 . . . . . . . . . . . . . . . . 17 ((𝑥𝐴𝐵𝑊) → ((𝑥𝐴𝐵)‘𝑥) = 𝐵)
7368, 71, 72syl2anc 587 . . . . . . . . . . . . . . . 16 ((((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → ((𝑥𝐴𝐵)‘𝑥) = 𝐵)
7458, 60, 61, 63, 63, 65, 65, 66, 73climeldmeqmpt3 42732 . . . . . . . . . . . . . . 15 (((𝜑𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → ((𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ↔ (𝑚𝑍𝐵) ∈ dom ⇝ ))
7574adantllr 718 . . . . . . . . . . . . . 14 ((((𝜑 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ) ∧ 𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → ((𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ↔ (𝑚𝑍𝐵) ∈ dom ⇝ ))
7654, 75mpbird 260 . . . . . . . . . . . . 13 ((((𝜑 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ) ∧ 𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )
7776exp31 423 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ) → (𝑛𝑍 → (𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )))
7852, 53, 77rexlimd 3241 . . . . . . . . . . 11 ((𝜑 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ) → (∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ))
7978adantrl 715 . . . . . . . . . 10 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ )) → (∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ))
8050, 79mpd 15 . . . . . . . . 9 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ )) → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )
8146, 80jca 515 . . . . . . . 8 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ )) → (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ))
8281ex 416 . . . . . . 7 (𝜑 → ((𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ) → (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )))
8344biimpar 481 . . . . . . . . . 10 ((𝜑𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵)) → 𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴)
8483adantrr 716 . . . . . . . . 9 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )) → 𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴)
8584, 48syl 17 . . . . . . . . . 10 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )) → ∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
866, 53nfan 1900 . . . . . . . . . . . 12 𝑛(𝜑 ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )
87 simpllr 775 . . . . . . . . . . . . . 14 ((((𝜑 ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ) ∧ 𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )
8874adantllr 718 . . . . . . . . . . . . . 14 ((((𝜑 ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ) ∧ 𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → ((𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ↔ (𝑚𝑍𝐵) ∈ dom ⇝ ))
8987, 88mpbid 235 . . . . . . . . . . . . 13 ((((𝜑 ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ) ∧ 𝑛𝑍) ∧ 𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → (𝑚𝑍𝐵) ∈ dom ⇝ )
9089exp31 423 . . . . . . . . . . . 12 ((𝜑 ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ) → (𝑛𝑍 → (𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → (𝑚𝑍𝐵) ∈ dom ⇝ )))
9186, 51, 90rexlimd 3241 . . . . . . . . . . 11 ((𝜑 ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ) → (∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → (𝑚𝑍𝐵) ∈ dom ⇝ ))
9291adantrl 715 . . . . . . . . . 10 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )) → (∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → (𝑚𝑍𝐵) ∈ dom ⇝ ))
9385, 92mpd 15 . . . . . . . . 9 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )) → (𝑚𝑍𝐵) ∈ dom ⇝ )
9484, 93jca 515 . . . . . . . 8 ((𝜑 ∧ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )) → (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ))
9594ex 416 . . . . . . 7 (𝜑 → ((𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ) → (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ )))
9682, 95impbid 215 . . . . . 6 (𝜑 → ((𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∧ (𝑚𝑍𝐵) ∈ dom ⇝ ) ↔ (𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∧ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ )))
973, 96rabbida3 42178 . . . . 5 (𝜑 → {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ } = {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∣ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ })
985, 97eqtrd 2793 . . . 4 (𝜑𝐷 = {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∣ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ })
994eleq2i 2843 . . . . . . . . 9 (𝑥𝐷𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ })
10099biimpi 219 . . . . . . . 8 (𝑥𝐷𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ })
101 rabidim1 3298 . . . . . . . 8 (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ } → 𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴)
102100, 101, 483syl 18 . . . . . . 7 (𝑥𝐷 → ∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
103102adantl 485 . . . . . 6 ((𝜑𝑥𝐷) → ∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
104 nfcv 2919 . . . . . . . . 9 𝑛𝑥
105 nfiu1 4920 . . . . . . . . . . 11 𝑛 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴
10651, 105nfrabw 3303 . . . . . . . . . 10 𝑛{𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)𝐴 ∣ (𝑚𝑍𝐵) ∈ dom ⇝ }
1074, 106nfcxfr 2917 . . . . . . . . 9 𝑛𝐷
108104, 107nfel 2933 . . . . . . . 8 𝑛 𝑥𝐷
1096, 108nfan 1900 . . . . . . 7 𝑛(𝜑𝑥𝐷)
110 nfv 1915 . . . . . . 7 𝑛( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))) = ( ⇝ ‘(𝑚𝑍𝐵))
1117, 8, 57nf3an 1902 . . . . . . . . . 10 𝑚(𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴)
112 simp2 1134 . . . . . . . . . . 11 ((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → 𝑛𝑍)
113112, 59syl 17 . . . . . . . . . 10 ((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → 𝑛 ∈ ℤ)
11462a1i 11 . . . . . . . . . 10 ((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → 𝑍 ∈ V)
11510, 112uzssd2 42455 . . . . . . . . . 10 ((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → (ℤ𝑛) ⊆ 𝑍)
116 fvexd 6678 . . . . . . . . . 10 (((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → ((𝑥𝐴𝐵)‘𝑥) ∈ V)
117673ad2antl3 1184 . . . . . . . . . . 11 (((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝑥𝐴)
118 simpl1 1188 . . . . . . . . . . . 12 (((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝜑)
119112, 11sylan 583 . . . . . . . . . . . 12 (((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝑚𝑍)
120118, 119, 117, 28syl3anc 1368 . . . . . . . . . . 11 (((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → 𝐵𝑊)
121117, 120, 72syl2anc 587 . . . . . . . . . 10 (((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) ∧ 𝑚 ∈ (ℤ𝑛)) → ((𝑥𝐴𝐵)‘𝑥) = 𝐵)
122111, 113, 61, 114, 114, 115, 115, 116, 121climfveqmpt3 42725 . . . . . . . . 9 ((𝜑𝑛𝑍𝑥 𝑚 ∈ (ℤ𝑛)𝐴) → ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))) = ( ⇝ ‘(𝑚𝑍𝐵)))
1231223exp 1116 . . . . . . . 8 (𝜑 → (𝑛𝑍 → (𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))) = ( ⇝ ‘(𝑚𝑍𝐵)))))
124123adantr 484 . . . . . . 7 ((𝜑𝑥𝐷) → (𝑛𝑍 → (𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))) = ( ⇝ ‘(𝑚𝑍𝐵)))))
125109, 110, 124rexlimd 3241 . . . . . 6 ((𝜑𝑥𝐷) → (∃𝑛𝑍 𝑥 𝑚 ∈ (ℤ𝑛)𝐴 → ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))) = ( ⇝ ‘(𝑚𝑍𝐵))))
126103, 125mpd 15 . . . . 5 ((𝜑𝑥𝐷) → ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))) = ( ⇝ ‘(𝑚𝑍𝐵)))
127126eqcomd 2764 . . . 4 ((𝜑𝑥𝐷) → ( ⇝ ‘(𝑚𝑍𝐵)) = ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))))
1283, 98, 127mpteq12da 42282 . . 3 (𝜑 → (𝑥𝐷 ↦ ( ⇝ ‘(𝑚𝑍𝐵))) = (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∣ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ } ↦ ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)))))
12938eqcomd 2764 . . . . . . . . 9 ((𝜑𝑚𝑍) → ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) = (𝑥𝐴𝐵))
130129fveq1d 6665 . . . . . . . 8 ((𝜑𝑚𝑍) → (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥) = ((𝑥𝐴𝐵)‘𝑥))
1317, 130mpteq2da 5130 . . . . . . 7 (𝜑 → (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) = (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)))
132131eqcomd 2764 . . . . . 6 (𝜑 → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) = (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)))
133132eleq1d 2836 . . . . 5 (𝜑 → ((𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ ↔ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ ))
1343, 42, 133rabbida2 42175 . . . 4 (𝜑 → {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∣ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ } = {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ })
135130eqcomd 2764 . . . . . 6 ((𝜑𝑚𝑍) → ((𝑥𝐴𝐵)‘𝑥) = (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥))
1367, 135mpteq2da 5130 . . . . 5 (𝜑 → (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) = (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)))
137136fveq2d 6667 . . . 4 (𝜑 → ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥))) = ( ⇝ ‘(𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥))))
1383, 134, 137mpteq12df 5118 . . 3 (𝜑 → (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom (𝑥𝐴𝐵) ∣ (𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)) ∈ dom ⇝ } ↦ ( ⇝ ‘(𝑚𝑍 ↦ ((𝑥𝐴𝐵)‘𝑥)))) = (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ } ↦ ( ⇝ ‘(𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)))))
1392, 128, 1383eqtrd 2797 . 2 (𝜑𝐺 = (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ } ↦ ( ⇝ ‘(𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)))))
140 nfmpt1 5134 . . 3 𝑚(𝑚𝑍 ↦ (𝑥𝐴𝐵))
141 nfcv 2919 . . . 4 𝑥𝑍
142 nfmpt1 5134 . . . 4 𝑥(𝑥𝐴𝐵)
143141, 142nfmpt 5133 . . 3 𝑥(𝑚𝑍 ↦ (𝑥𝐴𝐵))
144 smflimmpt.m . . 3 (𝜑𝑀 ∈ ℤ)
145 smflimmpt.s . . 3 (𝜑𝑆 ∈ SAlg)
146 smflimmpt.l . . . 4 ((𝜑𝑚𝑍) → (𝑥𝐴𝐵) ∈ (SMblFn‘𝑆))
1477, 146, 17fmptdf 6878 . . 3 (𝜑 → (𝑚𝑍 ↦ (𝑥𝐴𝐵)):𝑍⟶(SMblFn‘𝑆))
148 eqid 2758 . . 3 {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ } = {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ }
149 eqid 2758 . . 3 (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ } ↦ ( ⇝ ‘(𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)))) = (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ } ↦ ( ⇝ ‘(𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥))))
150140, 143, 144, 10, 145, 147, 148, 149smflim2 43838 . 2 (𝜑 → (𝑥 ∈ {𝑥 𝑛𝑍 𝑚 ∈ (ℤ𝑛)dom ((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚) ∣ (𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)) ∈ dom ⇝ } ↦ ( ⇝ ‘(𝑚𝑍 ↦ (((𝑚𝑍 ↦ (𝑥𝐴𝐵))‘𝑚)‘𝑥)))) ∈ (SMblFn‘𝑆))
151139, 150eqeltrd 2852 1 (𝜑𝐺 ∈ (SMblFn‘𝑆))
 Colors of variables: wff setvar class Syntax hints:   → wi 4   ↔ wb 209   ∧ wa 399   ∧ w3a 1084   = wceq 1538  Ⅎwnf 1785   ∈ wcel 2111  ∃wrex 3071  {crab 3074  Vcvv 3409   ⊆ wss 3860  ∪ ciun 4886  ∩ ciin 4887   ↦ cmpt 5116  dom cdm 5528  ‘cfv 6340  ℤcz 12033  ℤ≥cuz 12295   ⇝ cli 14902  SAlgcsalg 43351  SMblFncsmblfn 43735 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 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2729  ax-rep 5160  ax-sep 5173  ax-nul 5180  ax-pow 5238  ax-pr 5302  ax-un 7465  ax-inf2 9150  ax-cc 9908  ax-ac2 9936  ax-cnex 10644  ax-resscn 10645  ax-1cn 10646  ax-icn 10647  ax-addcl 10648  ax-addrcl 10649  ax-mulcl 10650  ax-mulrcl 10651  ax-mulcom 10652  ax-addass 10653  ax-mulass 10654  ax-distr 10655  ax-i2m1 10656  ax-1ne0 10657  ax-1rid 10658  ax-rnegex 10659  ax-rrecex 10660  ax-cnre 10661  ax-pre-lttri 10662  ax-pre-lttrn 10663  ax-pre-ltadd 10664  ax-pre-mulgt0 10665  ax-pre-sup 10666 This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-fal 1551  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2557  df-eu 2588  df-clab 2736  df-cleq 2750  df-clel 2830  df-nfc 2901  df-ne 2952  df-nel 3056  df-ral 3075  df-rex 3076  df-reu 3077  df-rmo 3078  df-rab 3079  df-v 3411  df-sbc 3699  df-csb 3808  df-dif 3863  df-un 3865  df-in 3867  df-ss 3877  df-pss 3879  df-nul 4228  df-if 4424  df-pw 4499  df-sn 4526  df-pr 4528  df-tp 4530  df-op 4532  df-uni 4802  df-int 4842  df-iun 4888  df-iin 4889  df-br 5037  df-opab 5099  df-mpt 5117  df-tr 5143  df-id 5434  df-eprel 5439  df-po 5447  df-so 5448  df-fr 5487  df-se 5488  df-we 5489  df-xp 5534  df-rel 5535  df-cnv 5536  df-co 5537  df-dm 5538  df-rn 5539  df-res 5540  df-ima 5541  df-pred 6131  df-ord 6177  df-on 6178  df-lim 6179  df-suc 6180  df-iota 6299  df-fun 6342  df-fn 6343  df-f 6344  df-f1 6345  df-fo 6346  df-f1o 6347  df-fv 6348  df-isom 6349  df-riota 7114  df-ov 7159  df-oprab 7160  df-mpo 7161  df-om 7586  df-1st 7699  df-2nd 7700  df-wrecs 7963  df-recs 8024  df-rdg 8062  df-1o 8118  df-oadd 8122  df-omul 8123  df-er 8305  df-map 8424  df-pm 8425  df-en 8541  df-dom 8542  df-sdom 8543  df-fin 8544  df-sup 8952  df-inf 8953  df-oi 9020  df-card 9414  df-acn 9417  df-ac 9589  df-pnf 10728  df-mnf 10729  df-xr 10730  df-ltxr 10731  df-le 10732  df-sub 10923  df-neg 10924  df-div 11349  df-nn 11688  df-2 11750  df-3 11751  df-n0 11948  df-z 12034  df-uz 12296  df-q 12402  df-rp 12444  df-ioo 12796  df-ico 12798  df-fl 13224  df-seq 13432  df-exp 13493  df-cj 14519  df-re 14520  df-im 14521  df-sqrt 14655  df-abs 14656  df-clim 14906  df-rlim 14907  df-rest 16767  df-salg 43352  df-smblfn 43736 This theorem is referenced by:  smflimsuplem3  43854
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