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Theorem smfpimcc 40777
Description: Given a countable set of sigma-measurable functions, and a Borel set 𝐴 there exists a choice function that, for each measurable function, chooses a measurable set that, when intersected with the function's domain, gives the preimage of 𝐴. This is a generalization of the observation at the beginning of the proof of Proposition 121F of [Fremlin1] p. 39 . The statement would also be provable for uncountable sets, but in most cases it will suffice to consider the countable case, and only the axiom of countable choice will be needed. (Contributed by Glauco Siliprandi, 23-Oct-2021.)
Hypotheses
Ref Expression
smfpimcc.1 𝑛𝐹
smfpimcc.z 𝑍 = (ℤ𝑀)
smfpimcc.s (𝜑𝑆 ∈ SAlg)
smfpimcc.f (𝜑𝐹:𝑍⟶(SMblFn‘𝑆))
smfpimcc.j 𝐽 = (topGen‘ran (,))
smfpimcc.b 𝐵 = (SalGen‘𝐽)
smfpimcc.a (𝜑𝐴𝐵)
Assertion
Ref Expression
smfpimcc (𝜑 → ∃(:𝑍𝑆 ∧ ∀𝑛𝑍 ((𝐹𝑛) “ 𝐴) = ((𝑛) ∩ dom (𝐹𝑛))))
Distinct variable groups:   𝐴,,𝑛   ,𝐹   𝑆,   ,𝑍,𝑛
Allowed substitution hints:   𝜑(,𝑛)   𝐵(,𝑛)   𝑆(𝑛)   𝐹(𝑛)   𝐽(,𝑛)   𝑀(,𝑛)

Proof of Theorem smfpimcc
Dummy variables 𝑓 𝑚 𝑠 𝑤 𝑦 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 smfpimcc.z . . . . . . 7 𝑍 = (ℤ𝑀)
21uzct 39052 . . . . . 6 𝑍 ≼ ω
32a1i 11 . . . . 5 (𝜑𝑍 ≼ ω)
4 mptct 9345 . . . . 5 (𝑍 ≼ ω → (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) ≼ ω)
5 rnct 9332 . . . . 5 ((𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) ≼ ω → ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) ≼ ω)
63, 4, 53syl 18 . . . 4 (𝜑 → ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) ≼ ω)
7 vex 3198 . . . . . . . 8 𝑦 ∈ V
8 eqid 2620 . . . . . . . . 9 (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) = (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})
98elrnmpt 5361 . . . . . . . 8 (𝑦 ∈ V → (𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) ↔ ∃𝑚𝑍 𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}))
107, 9ax-mp 5 . . . . . . 7 (𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) ↔ ∃𝑚𝑍 𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})
1110biimpi 206 . . . . . 6 (𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) → ∃𝑚𝑍 𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})
1211adantl 482 . . . . 5 ((𝜑𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})) → ∃𝑚𝑍 𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})
13 simp3 1061 . . . . . . . . 9 ((𝜑𝑚𝑍𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) → 𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})
14 smfpimcc.s . . . . . . . . . . . . . 14 (𝜑𝑆 ∈ SAlg)
1514adantr 481 . . . . . . . . . . . . 13 ((𝜑𝑚𝑍) → 𝑆 ∈ SAlg)
16 smfpimcc.f . . . . . . . . . . . . . 14 (𝜑𝐹:𝑍⟶(SMblFn‘𝑆))
1716ffvelrnda 6345 . . . . . . . . . . . . 13 ((𝜑𝑚𝑍) → (𝐹𝑚) ∈ (SMblFn‘𝑆))
18 eqid 2620 . . . . . . . . . . . . 13 dom (𝐹𝑚) = dom (𝐹𝑚)
19 smfpimcc.j . . . . . . . . . . . . 13 𝐽 = (topGen‘ran (,))
20 smfpimcc.b . . . . . . . . . . . . 13 𝐵 = (SalGen‘𝐽)
21 smfpimcc.a . . . . . . . . . . . . . 14 (𝜑𝐴𝐵)
2221adantr 481 . . . . . . . . . . . . 13 ((𝜑𝑚𝑍) → 𝐴𝐵)
23 eqid 2620 . . . . . . . . . . . . 13 ((𝐹𝑚) “ 𝐴) = ((𝐹𝑚) “ 𝐴)
2415, 17, 18, 19, 20, 22, 23smfpimbor1 40770 . . . . . . . . . . . 12 ((𝜑𝑚𝑍) → ((𝐹𝑚) “ 𝐴) ∈ (𝑆t dom (𝐹𝑚)))
25 fvex 6188 . . . . . . . . . . . . . . . 16 (𝐹𝑚) ∈ V
2625dmex 7084 . . . . . . . . . . . . . . 15 dom (𝐹𝑚) ∈ V
2726a1i 11 . . . . . . . . . . . . . 14 (𝜑 → dom (𝐹𝑚) ∈ V)
28 elrest 16069 . . . . . . . . . . . . . 14 ((𝑆 ∈ SAlg ∧ dom (𝐹𝑚) ∈ V) → (((𝐹𝑚) “ 𝐴) ∈ (𝑆t dom (𝐹𝑚)) ↔ ∃𝑠𝑆 ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))))
2914, 27, 28syl2anc 692 . . . . . . . . . . . . 13 (𝜑 → (((𝐹𝑚) “ 𝐴) ∈ (𝑆t dom (𝐹𝑚)) ↔ ∃𝑠𝑆 ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))))
3029adantr 481 . . . . . . . . . . . 12 ((𝜑𝑚𝑍) → (((𝐹𝑚) “ 𝐴) ∈ (𝑆t dom (𝐹𝑚)) ↔ ∃𝑠𝑆 ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))))
3124, 30mpbid 222 . . . . . . . . . . 11 ((𝜑𝑚𝑍) → ∃𝑠𝑆 ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚)))
32 rabn0 3949 . . . . . . . . . . 11 ({𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))} ≠ ∅ ↔ ∃𝑠𝑆 ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚)))
3331, 32sylibr 224 . . . . . . . . . 10 ((𝜑𝑚𝑍) → {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))} ≠ ∅)
34333adant3 1079 . . . . . . . . 9 ((𝜑𝑚𝑍𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) → {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))} ≠ ∅)
3513, 34eqnetrd 2858 . . . . . . . 8 ((𝜑𝑚𝑍𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}) → 𝑦 ≠ ∅)
36353exp 1262 . . . . . . 7 (𝜑 → (𝑚𝑍 → (𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))} → 𝑦 ≠ ∅)))
3736rexlimdv 3026 . . . . . 6 (𝜑 → (∃𝑚𝑍 𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))} → 𝑦 ≠ ∅))
3837adantr 481 . . . . 5 ((𝜑𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})) → (∃𝑚𝑍 𝑦 = {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))} → 𝑦 ≠ ∅))
3912, 38mpd 15 . . . 4 ((𝜑𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})) → 𝑦 ≠ ∅)
406, 39axccd2 39246 . . 3 (𝜑 → ∃𝑓𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦)
41 nfv 1841 . . . . . . 7 𝑚𝜑
42 nfmpt1 4738 . . . . . . . . 9 𝑚(𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})
4342nfrn 5357 . . . . . . . 8 𝑚ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})
44 nfv 1841 . . . . . . . 8 𝑚(𝑓𝑦) ∈ 𝑦
4543, 44nfral 2942 . . . . . . 7 𝑚𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦
4641, 45nfan 1826 . . . . . 6 𝑚(𝜑 ∧ ∀𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦)
47 fvex 6188 . . . . . . 7 (ℤ𝑀) ∈ V
481, 47eqeltri 2695 . . . . . 6 𝑍 ∈ V
4914adantr 481 . . . . . 6 ((𝜑 ∧ ∀𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦) → 𝑆 ∈ SAlg)
50 fveq2 6178 . . . . . . . . 9 (𝑦 = 𝑤 → (𝑓𝑦) = (𝑓𝑤))
51 id 22 . . . . . . . . 9 (𝑦 = 𝑤𝑦 = 𝑤)
5250, 51eleq12d 2693 . . . . . . . 8 (𝑦 = 𝑤 → ((𝑓𝑦) ∈ 𝑦 ↔ (𝑓𝑤) ∈ 𝑤))
5352rspccva 3303 . . . . . . 7 ((∀𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦𝑤 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})) → (𝑓𝑤) ∈ 𝑤)
5453adantll 749 . . . . . 6 (((𝜑 ∧ ∀𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦) ∧ 𝑤 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})) → (𝑓𝑤) ∈ 𝑤)
55 eqid 2620 . . . . . 6 (𝑚𝑍 ↦ (𝑓‘{𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})) = (𝑚𝑍 ↦ (𝑓‘{𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))}))
5646, 48, 49, 54, 55smfpimcclem 40776 . . . . 5 ((𝜑 ∧ ∀𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦) → ∃(:𝑍𝑆 ∧ ∀𝑚𝑍 ((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚))))
5756ex 450 . . . 4 (𝜑 → (∀𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦 → ∃(:𝑍𝑆 ∧ ∀𝑚𝑍 ((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚)))))
5857exlimdv 1859 . . 3 (𝜑 → (∃𝑓𝑦 ∈ ran (𝑚𝑍 ↦ {𝑠𝑆 ∣ ((𝐹𝑚) “ 𝐴) = (𝑠 ∩ dom (𝐹𝑚))})(𝑓𝑦) ∈ 𝑦 → ∃(:𝑍𝑆 ∧ ∀𝑚𝑍 ((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚)))))
5940, 58mpd 15 . 2 (𝜑 → ∃(:𝑍𝑆 ∧ ∀𝑚𝑍 ((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚))))
60 smfpimcc.1 . . . . . . . . 9 𝑛𝐹
61 nfcv 2762 . . . . . . . . 9 𝑛𝑚
6260, 61nffv 6185 . . . . . . . 8 𝑛(𝐹𝑚)
6362nfcnv 5290 . . . . . . 7 𝑛(𝐹𝑚)
64 nfcv 2762 . . . . . . 7 𝑛𝐴
6563, 64nfima 5462 . . . . . 6 𝑛((𝐹𝑚) “ 𝐴)
66 nfcv 2762 . . . . . . 7 𝑛(𝑚)
6762nfdm 5356 . . . . . . 7 𝑛dom (𝐹𝑚)
6866, 67nfin 3812 . . . . . 6 𝑛((𝑚) ∩ dom (𝐹𝑚))
6965, 68nfeq 2773 . . . . 5 𝑛((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚))
70 nfv 1841 . . . . 5 𝑚((𝐹𝑛) “ 𝐴) = ((𝑛) ∩ dom (𝐹𝑛))
71 fveq2 6178 . . . . . . . 8 (𝑚 = 𝑛 → (𝐹𝑚) = (𝐹𝑛))
7271cnveqd 5287 . . . . . . 7 (𝑚 = 𝑛(𝐹𝑚) = (𝐹𝑛))
7372imaeq1d 5453 . . . . . 6 (𝑚 = 𝑛 → ((𝐹𝑚) “ 𝐴) = ((𝐹𝑛) “ 𝐴))
74 fveq2 6178 . . . . . . 7 (𝑚 = 𝑛 → (𝑚) = (𝑛))
7571dmeqd 5315 . . . . . . 7 (𝑚 = 𝑛 → dom (𝐹𝑚) = dom (𝐹𝑛))
7674, 75ineq12d 3807 . . . . . 6 (𝑚 = 𝑛 → ((𝑚) ∩ dom (𝐹𝑚)) = ((𝑛) ∩ dom (𝐹𝑛)))
7773, 76eqeq12d 2635 . . . . 5 (𝑚 = 𝑛 → (((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚)) ↔ ((𝐹𝑛) “ 𝐴) = ((𝑛) ∩ dom (𝐹𝑛))))
7869, 70, 77cbvral 3162 . . . 4 (∀𝑚𝑍 ((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚)) ↔ ∀𝑛𝑍 ((𝐹𝑛) “ 𝐴) = ((𝑛) ∩ dom (𝐹𝑛)))
7978anbi2i 729 . . 3 ((:𝑍𝑆 ∧ ∀𝑚𝑍 ((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚))) ↔ (:𝑍𝑆 ∧ ∀𝑛𝑍 ((𝐹𝑛) “ 𝐴) = ((𝑛) ∩ dom (𝐹𝑛))))
8079exbii 1772 . 2 (∃(:𝑍𝑆 ∧ ∀𝑚𝑍 ((𝐹𝑚) “ 𝐴) = ((𝑚) ∩ dom (𝐹𝑚))) ↔ ∃(:𝑍𝑆 ∧ ∀𝑛𝑍 ((𝐹𝑛) “ 𝐴) = ((𝑛) ∩ dom (𝐹𝑛))))
8159, 80sylib 208 1 (𝜑 → ∃(:𝑍𝑆 ∧ ∀𝑛𝑍 ((𝐹𝑛) “ 𝐴) = ((𝑛) ∩ dom (𝐹𝑛))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 196  wa 384  w3a 1036   = wceq 1481  wex 1702  wcel 1988  wnfc 2749  wne 2791  wral 2909  wrex 2910  {crab 2913  Vcvv 3195  cin 3566  c0 3907   class class class wbr 4644  cmpt 4720  ccnv 5103  dom cdm 5104  ran crn 5105  cima 5107  wf 5872  cfv 5876  (class class class)co 6635  ωcom 7050  cdom 7938  cuz 11672  (,)cioo 12160  t crest 16062  topGenctg 16079  SAlgcsalg 40291  SalGencsalgen 40295  SMblFncsmblfn 40672
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1720  ax-4 1735  ax-5 1837  ax-6 1886  ax-7 1933  ax-8 1990  ax-9 1997  ax-10 2017  ax-11 2032  ax-12 2045  ax-13 2244  ax-ext 2600  ax-rep 4762  ax-sep 4772  ax-nul 4780  ax-pow 4834  ax-pr 4897  ax-un 6934  ax-inf2 8523  ax-cc 9242  ax-ac2 9270  ax-cnex 9977  ax-resscn 9978  ax-1cn 9979  ax-icn 9980  ax-addcl 9981  ax-addrcl 9982  ax-mulcl 9983  ax-mulrcl 9984  ax-mulcom 9985  ax-addass 9986  ax-mulass 9987  ax-distr 9988  ax-i2m1 9989  ax-1ne0 9990  ax-1rid 9991  ax-rnegex 9992  ax-rrecex 9993  ax-cnre 9994  ax-pre-lttri 9995  ax-pre-lttrn 9996  ax-pre-ltadd 9997  ax-pre-mulgt0 9998  ax-pre-sup 9999
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1484  df-ex 1703  df-nf 1708  df-sb 1879  df-eu 2472  df-mo 2473  df-clab 2607  df-cleq 2613  df-clel 2616  df-nfc 2751  df-ne 2792  df-nel 2895  df-ral 2914  df-rex 2915  df-reu 2916  df-rmo 2917  df-rab 2918  df-v 3197  df-sbc 3430  df-csb 3527  df-dif 3570  df-un 3572  df-in 3574  df-ss 3581  df-pss 3583  df-nul 3908  df-if 4078  df-pw 4151  df-sn 4169  df-pr 4171  df-tp 4173  df-op 4175  df-uni 4428  df-int 4467  df-iun 4513  df-iin 4514  df-br 4645  df-opab 4704  df-mpt 4721  df-tr 4744  df-id 5014  df-eprel 5019  df-po 5025  df-so 5026  df-fr 5063  df-se 5064  df-we 5065  df-xp 5110  df-rel 5111  df-cnv 5112  df-co 5113  df-dm 5114  df-rn 5115  df-res 5116  df-ima 5117  df-pred 5668  df-ord 5714  df-on 5715  df-lim 5716  df-suc 5717  df-iota 5839  df-fun 5878  df-fn 5879  df-f 5880  df-f1 5881  df-fo 5882  df-f1o 5883  df-fv 5884  df-isom 5885  df-riota 6596  df-ov 6638  df-oprab 6639  df-mpt2 6640  df-om 7051  df-1st 7153  df-2nd 7154  df-wrecs 7392  df-recs 7453  df-rdg 7491  df-1o 7545  df-oadd 7549  df-omul 7550  df-er 7727  df-map 7844  df-pm 7845  df-en 7941  df-dom 7942  df-sdom 7943  df-fin 7944  df-sup 8333  df-inf 8334  df-oi 8400  df-card 8750  df-acn 8753  df-ac 8924  df-pnf 10061  df-mnf 10062  df-xr 10063  df-ltxr 10064  df-le 10065  df-sub 10253  df-neg 10254  df-div 10670  df-nn 11006  df-n0 11278  df-z 11363  df-uz 11673  df-q 11774  df-rp 11818  df-ioo 12164  df-ico 12166  df-fl 12576  df-rest 16064  df-topgen 16085  df-top 20680  df-bases 20731  df-salg 40292  df-salgen 40296  df-smblfn 40673
This theorem is referenced by:  smfsuplem2  40781
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