mulcncf - Intuitionistic Logic Explorer

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Theorem mulcncf 13385

Description: The multiplication of two continuous complex functions is continuous. (Contributed by Glauco Siliprandi, 29-Jun-2017.)

**Hypotheses**
Ref	Expression
mulcncf.1	⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ))
mulcncf.2	⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ))

**Assertion**
Ref	Expression
mulcncf	⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵)) ∈ (𝑋–cn→ℂ))

Distinct variable groups: 𝑥,𝑋 𝜑,𝑥 Allowed substitution hints: 𝐴(𝑥) 𝐵(𝑥)

Proof of Theorem mulcncf Dummy variables 𝑎 𝑏 𝑑 𝑒 𝑓 𝑔 𝑠 𝑡 𝑢 𝑣 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		mulcncf.1	. . . . . . 7 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ))
2		cncff 13358	. . . . . . 7 ⊢ ((𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ) → (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶ℂ)
3	1, 2	syl 14	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶ℂ)
4		eqid 2170	. . . . . . 7 ⊢ (𝑥 ∈ 𝑋 ↦ 𝐴) = (𝑥 ∈ 𝑋 ↦ 𝐴)
5	4	fmpt 5646	. . . . . 6 ⊢ (∀𝑥 ∈ 𝑋 𝐴 ∈ ℂ ↔ (𝑥 ∈ 𝑋 ↦ 𝐴):𝑋⟶ℂ)
6	3, 5	sylibr 133	. . . . 5 ⊢ (𝜑 → ∀𝑥 ∈ 𝑋 𝐴 ∈ ℂ)
7	6	r19.21bi 2558	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐴 ∈ ℂ)
8		mulcncf.2	. . . . . . 7 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ))
9		cncff 13358	. . . . . . 7 ⊢ ((𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ) → (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶ℂ)
10	8, 9	syl 14	. . . . . 6 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶ℂ)
11		eqid 2170	. . . . . . 7 ⊢ (𝑥 ∈ 𝑋 ↦ 𝐵) = (𝑥 ∈ 𝑋 ↦ 𝐵)
12	11	fmpt 5646	. . . . . 6 ⊢ (∀𝑥 ∈ 𝑋 𝐵 ∈ ℂ ↔ (𝑥 ∈ 𝑋 ↦ 𝐵):𝑋⟶ℂ)
13	10, 12	sylibr 133	. . . . 5 ⊢ (𝜑 → ∀𝑥 ∈ 𝑋 𝐵 ∈ ℂ)
14	13	r19.21bi 2558	. . . 4 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → 𝐵 ∈ ℂ)
15	7, 14	mulcld 7940	. . 3 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝑋) → (𝐴 · 𝐵) ∈ ℂ)
16	15	fmpttd 5651	. 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵)):𝑋⟶ℂ)
17		simpr 109	. . . . . 6 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → 𝑒 ∈ ℝ⁺)
18		simplr 525	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → 𝑣 ∈ 𝑋)
19	6	ad2antrr 485	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → ∀𝑥 ∈ 𝑋 𝐴 ∈ ℂ)
20		rspcsbela 3108	. . . . . . 7 ⊢ ((𝑣 ∈ 𝑋 ∧ ∀𝑥 ∈ 𝑋 𝐴 ∈ ℂ) → ⦋𝑣 / 𝑥⦌𝐴 ∈ ℂ)
21	18, 19, 20	syl2anc 409	. . . . . 6 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → ⦋𝑣 / 𝑥⦌𝐴 ∈ ℂ)
22	13	ad2antrr 485	. . . . . . 7 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → ∀𝑥 ∈ 𝑋 𝐵 ∈ ℂ)
23		rspcsbela 3108	. . . . . . 7 ⊢ ((𝑣 ∈ 𝑋 ∧ ∀𝑥 ∈ 𝑋 𝐵 ∈ ℂ) → ⦋𝑣 / 𝑥⦌𝐵 ∈ ℂ)
24	18, 22, 23	syl2anc 409	. . . . . 6 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → ⦋𝑣 / 𝑥⦌𝐵 ∈ ℂ)
25		mulcn2 11275	. . . . . 6 ⊢ ((𝑒 ∈ ℝ⁺ ∧ ⦋𝑣 / 𝑥⦌𝐴 ∈ ℂ ∧ ⦋𝑣 / 𝑥⦌𝐵 ∈ ℂ) → ∃𝑓 ∈ ℝ⁺ ∃𝑔 ∈ ℝ⁺ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
26	17, 21, 24, 25	syl3anc 1233	. . . . 5 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → ∃𝑓 ∈ ℝ⁺ ∃𝑔 ∈ ℝ⁺ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
27	1	ad3antrrr 489	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ))
28		simpr 109	. . . . . . . . 9 ⊢ ((𝜑 ∧ 𝑣 ∈ 𝑋) → 𝑣 ∈ 𝑋)
29	28	ad2antrr 485	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → 𝑣 ∈ 𝑋)
30		simprl 526	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → 𝑓 ∈ ℝ⁺)
31		cncfi 13359	. . . . . . . 8 ⊢ (((𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ) ∧ 𝑣 ∈ 𝑋 ∧ 𝑓 ∈ ℝ⁺) → ∃𝑠 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))
32	27, 29, 30, 31	syl3anc 1233	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → ∃𝑠 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))
33	8	ad3antrrr 489	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ))
34		simprr 527	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → 𝑔 ∈ ℝ⁺)
35		cncfi 13359	. . . . . . . . . 10 ⊢ (((𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ) ∧ 𝑣 ∈ 𝑋 ∧ 𝑔 ∈ ℝ⁺) → ∃𝑡 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))
36	33, 29, 34, 35	syl3anc 1233	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → ∃𝑡 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))
37	36	adantr 274	. . . . . . . 8 ⊢ (((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) → ∃𝑡 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))
38	27	ad3antrrr 489	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ))
39	33	ad3antrrr 489	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ))
40	29	ad3antrrr 489	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → 𝑣 ∈ 𝑋)
41		simp-5r 539	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → 𝑒 ∈ ℝ⁺)
42	30	ad3antrrr 489	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → 𝑓 ∈ ℝ⁺)
43	34	ad3antrrr 489	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → 𝑔 ∈ ℝ⁺)
44		simprl 526	. . . . . . . . . . 11 ⊢ (((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) → 𝑠 ∈ ℝ⁺)
45	44	ad2antrr 485	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → 𝑠 ∈ ℝ⁺)
46		simplrl 530	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → 𝑡 ∈ ℝ⁺)
47		simprr 527	. . . . . . . . . . 11 ⊢ (((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) → ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))
48	47	ad2antrr 485	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))
49		simplrr 531	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))
50		nfv 1521	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑢(((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺))
51		nfv 1521	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑢 𝑠 ∈ ℝ⁺
52		nfra1 2501	. . . . . . . . . . . . . . 15 ⊢ Ⅎ𝑢∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓)
53	51, 52	nfan 1558	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑢(𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))
54	50, 53	nfan 1558	. . . . . . . . . . . . 13 ⊢ Ⅎ𝑢((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓)))
55		nfv 1521	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑢 𝑡 ∈ ℝ⁺
56		nfra1 2501	. . . . . . . . . . . . . 14 ⊢ Ⅎ𝑢∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔)
57	55, 56	nfan 1558	. . . . . . . . . . . . 13 ⊢ Ⅎ𝑢(𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))
58	54, 57	nfan 1558	. . . . . . . . . . . 12 ⊢ Ⅎ𝑢(((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔)))
59		nfv 1521	. . . . . . . . . . . 12 ⊢ Ⅎ𝑢∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)
60	58, 59	nfan 1558	. . . . . . . . . . 11 ⊢ Ⅎ𝑢((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
61		simpr 109	. . . . . . . . . . . . . 14 ⊢ ((((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) ∧ 𝑢 ∈ 𝑋) → 𝑢 ∈ 𝑋)
62	19	ad5antr 493	. . . . . . . . . . . . . 14 ⊢ ((((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) ∧ 𝑢 ∈ 𝑋) → ∀𝑥 ∈ 𝑋 𝐴 ∈ ℂ)
63		rspcsbela 3108	. . . . . . . . . . . . . 14 ⊢ ((𝑢 ∈ 𝑋 ∧ ∀𝑥 ∈ 𝑋 𝐴 ∈ ℂ) → ⦋𝑢 / 𝑥⦌𝐴 ∈ ℂ)
64	61, 62, 63	syl2anc 409	. . . . . . . . . . . . 13 ⊢ ((((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) ∧ 𝑢 ∈ 𝑋) → ⦋𝑢 / 𝑥⦌𝐴 ∈ ℂ)
65	22	ad5antr 493	. . . . . . . . . . . . . 14 ⊢ ((((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) ∧ 𝑢 ∈ 𝑋) → ∀𝑥 ∈ 𝑋 𝐵 ∈ ℂ)
66		rspcsbela 3108	. . . . . . . . . . . . . 14 ⊢ ((𝑢 ∈ 𝑋 ∧ ∀𝑥 ∈ 𝑋 𝐵 ∈ ℂ) → ⦋𝑢 / 𝑥⦌𝐵 ∈ ℂ)
67	61, 65, 66	syl2anc 409	. . . . . . . . . . . . 13 ⊢ ((((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) ∧ 𝑢 ∈ 𝑋) → ⦋𝑢 / 𝑥⦌𝐵 ∈ ℂ)
68		simplr 525	. . . . . . . . . . . . 13 ⊢ ((((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) ∧ 𝑢 ∈ 𝑋) → ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
69		fvoveq1 5876	. . . . . . . . . . . . . . . . 17 ⊢ (𝑎 = ⦋𝑢 / 𝑥⦌𝐴 → (abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) = (abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)))
70	69	breq1d 3999	. . . . . . . . . . . . . . . 16 ⊢ (𝑎 = ⦋𝑢 / 𝑥⦌𝐴 → ((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ↔ (abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓))
71	70	anbi1d 462	. . . . . . . . . . . . . . 15 ⊢ (𝑎 = ⦋𝑢 / 𝑥⦌𝐴 → (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) ↔ ((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔)))
72		oveq1 5860	. . . . . . . . . . . . . . . . 17 ⊢ (𝑎 = ⦋𝑢 / 𝑥⦌𝐴 → (𝑎 · 𝑏) = (⦋𝑢 / 𝑥⦌𝐴 · 𝑏))
73	72	fvoveq1d 5875	. . . . . . . . . . . . . . . 16 ⊢ (𝑎 = ⦋𝑢 / 𝑥⦌𝐴 → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) = (abs‘((⦋𝑢 / 𝑥⦌𝐴 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))))
74	73	breq1d 3999	. . . . . . . . . . . . . . 15 ⊢ (𝑎 = ⦋𝑢 / 𝑥⦌𝐴 → ((abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒 ↔ (abs‘((⦋𝑢 / 𝑥⦌𝐴 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
75	71, 74	imbi12d 233	. . . . . . . . . . . . . 14 ⊢ (𝑎 = ⦋𝑢 / 𝑥⦌𝐴 → ((((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒) ↔ (((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)))
76		fvoveq1 5876	. . . . . . . . . . . . . . . . 17 ⊢ (𝑏 = ⦋𝑢 / 𝑥⦌𝐵 → (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) = (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)))
77	76	breq1d 3999	. . . . . . . . . . . . . . . 16 ⊢ (𝑏 = ⦋𝑢 / 𝑥⦌𝐵 → ((abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔 ↔ (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔))
78	77	anbi2d 461	. . . . . . . . . . . . . . 15 ⊢ (𝑏 = ⦋𝑢 / 𝑥⦌𝐵 → (((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) ↔ ((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔)))
79		oveq2 5861	. . . . . . . . . . . . . . . . 17 ⊢ (𝑏 = ⦋𝑢 / 𝑥⦌𝐵 → (⦋𝑢 / 𝑥⦌𝐴 · 𝑏) = (⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵))
80	79	fvoveq1d 5875	. . . . . . . . . . . . . . . 16 ⊢ (𝑏 = ⦋𝑢 / 𝑥⦌𝐵 → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) = (abs‘((⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))))
81	80	breq1d 3999	. . . . . . . . . . . . . . 15 ⊢ (𝑏 = ⦋𝑢 / 𝑥⦌𝐵 → ((abs‘((⦋𝑢 / 𝑥⦌𝐴 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒 ↔ (abs‘((⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
82	78, 81	imbi12d 233	. . . . . . . . . . . . . 14 ⊢ (𝑏 = ⦋𝑢 / 𝑥⦌𝐵 → ((((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒) ↔ (((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)))
83	75, 82	rspc2va 2848	. . . . . . . . . . . . 13 ⊢ (((⦋𝑢 / 𝑥⦌𝐴 ∈ ℂ ∧ ⦋𝑢 / 𝑥⦌𝐵 ∈ ℂ) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → (((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
84	64, 67, 68, 83	syl21anc 1232	. . . . . . . . . . . 12 ⊢ ((((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) ∧ 𝑢 ∈ 𝑋) → (((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
85	84	ex 114	. . . . . . . . . . 11 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → (𝑢 ∈ 𝑋 → (((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)))
86	60, 85	ralrimi 2541	. . . . . . . . . 10 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → ∀𝑢 ∈ 𝑋 (((abs‘(⦋𝑢 / 𝑥⦌𝐴 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(⦋𝑢 / 𝑥⦌𝐵 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((⦋𝑢 / 𝑥⦌𝐴 · ⦋𝑢 / 𝑥⦌𝐵) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒))
87	38, 39, 40, 41, 42, 43, 45, 46, 48, 49, 86	mulcncflem 13384	. . . . . . . . 9 ⊢ (((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) ∧ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒)) → ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒))
88	87	ex 114	. . . . . . . 8 ⊢ ((((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) ∧ (𝑡 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑡 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐵)‘𝑣))) < 𝑔))) → (∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒) → ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒)))
89	37, 88	rexlimddv 2592	. . . . . . 7 ⊢ (((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) ∧ (𝑠 ∈ ℝ⁺ ∧ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑠 → (abs‘(((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑢) − ((𝑥 ∈ 𝑋 ↦ 𝐴)‘𝑣))) < 𝑓))) → (∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒) → ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒)))
90	32, 89	rexlimddv 2592	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) ∧ (𝑓 ∈ ℝ⁺ ∧ 𝑔 ∈ ℝ⁺)) → (∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒) → ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒)))
91	90	rexlimdvva 2595	. . . . 5 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → (∃𝑓 ∈ ℝ⁺ ∃𝑔 ∈ ℝ⁺ ∀𝑎 ∈ ℂ ∀𝑏 ∈ ℂ (((abs‘(𝑎 − ⦋𝑣 / 𝑥⦌𝐴)) < 𝑓 ∧ (abs‘(𝑏 − ⦋𝑣 / 𝑥⦌𝐵)) < 𝑔) → (abs‘((𝑎 · 𝑏) − (⦋𝑣 / 𝑥⦌𝐴 · ⦋𝑣 / 𝑥⦌𝐵))) < 𝑒) → ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒)))
92	26, 91	mpd 13	. . . 4 ⊢ (((𝜑 ∧ 𝑣 ∈ 𝑋) ∧ 𝑒 ∈ ℝ⁺) → ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒))
93	92	ralrimiva 2543	. . 3 ⊢ ((𝜑 ∧ 𝑣 ∈ 𝑋) → ∀𝑒 ∈ ℝ⁺ ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒))
94	93	ralrimiva 2543	. 2 ⊢ (𝜑 → ∀𝑣 ∈ 𝑋 ∀𝑒 ∈ ℝ⁺ ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒))
95		cncfrss 13356	. . . 4 ⊢ ((𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ) → 𝑋 ⊆ ℂ)
96	1, 95	syl 14	. . 3 ⊢ (𝜑 → 𝑋 ⊆ ℂ)
97		ssidd 3168	. . 3 ⊢ (𝜑 → ℂ ⊆ ℂ)
98		elcncf2 13355	. . 3 ⊢ ((𝑋 ⊆ ℂ ∧ ℂ ⊆ ℂ) → ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵)) ∈ (𝑋–cn→ℂ) ↔ ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵)):𝑋⟶ℂ ∧ ∀𝑣 ∈ 𝑋 ∀𝑒 ∈ ℝ⁺ ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒))))
99	96, 97, 98	syl2anc 409	. 2 ⊢ (𝜑 → ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵)) ∈ (𝑋–cn→ℂ) ↔ ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵)):𝑋⟶ℂ ∧ ∀𝑣 ∈ 𝑋 ∀𝑒 ∈ ℝ⁺ ∃𝑑 ∈ ℝ⁺ ∀𝑢 ∈ 𝑋 ((abs‘(𝑢 − 𝑣)) < 𝑑 → (abs‘(((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑢) − ((𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵))‘𝑣))) < 𝑒))))
100	16, 94, 99	mpbir2and 939	1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴 · 𝐵)) ∈ (𝑋–cn→ℂ))

Colors of variables: wff set class

Syntax hints: → wi 4 ∧ wa 103 ↔ wb 104 = wceq 1348 ∈ wcel 2141 ∀wral 2448 ∃wrex 2449 ⦋csb 3049 ⊆ wss 3121 class class class wbr 3989 ↦ cmpt 4050 ⟶wf 5194 ‘cfv 5198 (class class class)co 5853 ℂcc 7772 · cmul 7779 < clt 7954 − cmin 8090 ℝ⁺crp 9610 abscabs 10961 –cn→ccncf 13351

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 609 ax-in2 610 ax-io 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-13 2143 ax-14 2144 ax-ext 2152 ax-coll 4104 ax-sep 4107 ax-nul 4115 ax-pow 4160 ax-pr 4194 ax-un 4418 ax-setind 4521 ax-iinf 4572 ax-cnex 7865 ax-resscn 7866 ax-1cn 7867 ax-1re 7868 ax-icn 7869 ax-addcl 7870 ax-addrcl 7871 ax-mulcl 7872 ax-mulrcl 7873 ax-addcom 7874 ax-mulcom 7875 ax-addass 7876 ax-mulass 7877 ax-distr 7878 ax-i2m1 7879 ax-0lt1 7880 ax-1rid 7881 ax-0id 7882 ax-rnegex 7883 ax-precex 7884 ax-cnre 7885 ax-pre-ltirr 7886 ax-pre-ltwlin 7887 ax-pre-lttrn 7888 ax-pre-apti 7889 ax-pre-ltadd 7890 ax-pre-mulgt0 7891 ax-pre-mulext 7892 ax-arch 7893 ax-caucvg 7894

This theorem depends on definitions: df-bi 116 df-dc 830 df-3or 974 df-3an 975 df-tru 1351 df-fal 1354 df-nf 1454 df-sb 1756 df-eu 2022 df-mo 2023 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ne 2341 df-nel 2436 df-ral 2453 df-rex 2454 df-reu 2455 df-rmo 2456 df-rab 2457 df-v 2732 df-sbc 2956 df-csb 3050 df-dif 3123 df-un 3125 df-in 3127 df-ss 3134 df-nul 3415 df-if 3527 df-pw 3568 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-int 3832 df-iun 3875 df-br 3990 df-opab 4051 df-mpt 4052 df-tr 4088 df-id 4278 df-po 4281 df-iso 4282 df-iord 4351 df-on 4353 df-ilim 4354 df-suc 4356 df-iom 4575 df-xp 4617 df-rel 4618 df-cnv 4619 df-co 4620 df-dm 4621 df-rn 4622 df-res 4623 df-ima 4624 df-iota 5160 df-fun 5200 df-fn 5201 df-f 5202 df-f1 5203 df-fo 5204 df-f1o 5205 df-fv 5206 df-isom 5207 df-riota 5809 df-ov 5856 df-oprab 5857 df-mpo 5858 df-1st 6119 df-2nd 6120 df-recs 6284 df-frec 6370 df-map 6628 df-sup 6961 df-inf 6962 df-pnf 7956 df-mnf 7957 df-xr 7958 df-ltxr 7959 df-le 7960 df-sub 8092 df-neg 8093 df-reap 8494 df-ap 8501 df-div 8590 df-inn 8879 df-2 8937 df-3 8938 df-4 8939 df-n0 9136 df-z 9213 df-uz 9488 df-rp 9611 df-seqfrec 10402 df-exp 10476 df-cj 10806 df-re 10807 df-im 10808 df-rsqrt 10962 df-abs 10963 df-cncf 13352

This theorem is referenced by: expcncf 13386

W3C validator