4rexfrabdioph - Mathbox for Stefan O'Rear

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Theorem 4rexfrabdioph 42279

Description: Diophantine set builder for existential quantifier, explicit substitution, four variables. (Contributed by Stefan O'Rear, 11-Oct-2014.) (Revised by Stefan O'Rear, 6-May-2015.)

**Hypotheses**
Ref	Expression
rexfrabdioph.1	⊢ 𝑀 = (𝑁 + 1)
rexfrabdioph.2	⊢ 𝐿 = (𝑀 + 1)
rexfrabdioph.3	⊢ 𝐾 = (𝐿 + 1)
rexfrabdioph.4	⊢ 𝐽 = (𝐾 + 1)

**Assertion**
Ref	Expression
4rexfrabdioph	⊢ ((𝑁 ∈ ℕ₀ ∧ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑} ∈ (Dioph‘𝐽)) → {𝑢 ∈ (ℕ₀ ↑_m (1...𝑁)) ∣ ∃𝑣 ∈ ℕ₀ ∃𝑤 ∈ ℕ₀ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑} ∈ (Dioph‘𝑁))

Distinct variable groups: 𝑢,𝑡,𝑣,𝑤,𝑥,𝑦,𝐽 𝑡,𝐾,𝑢,𝑣,𝑤,𝑥,𝑦 𝑡,𝐿,𝑢,𝑣,𝑤,𝑥,𝑦 𝑡,𝑀,𝑢,𝑣,𝑤,𝑥,𝑦 𝑡,𝑁,𝑢,𝑣,𝑤,𝑥,𝑦 𝜑,𝑡 Allowed substitution hints: 𝜑(𝑥,𝑦,𝑤,𝑣,𝑢)

Proof of Theorem 4rexfrabdioph Dummy variable 𝑎 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		2sbcrex 42265	. . . . . . 7 ⊢ ([(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑 ↔ ∃𝑥 ∈ ℕ₀ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑦 ∈ ℕ₀ 𝜑)
2		2sbcrex 42265	. . . . . . . 8 ⊢ ([(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑦 ∈ ℕ₀ 𝜑 ↔ ∃𝑦 ∈ ℕ₀ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑)
3	2	rexbii 3084	. . . . . . 7 ⊢ (∃𝑥 ∈ ℕ₀ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑦 ∈ ℕ₀ 𝜑 ↔ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑)
4	1, 3	bitri 274	. . . . . 6 ⊢ ([(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑 ↔ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑)
5	4	sbcbii 3831	. . . . 5 ⊢ ([(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑 ↔ [(𝑎 ↾ (1...𝑁)) / 𝑢]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑)
6		sbc2rex 42268	. . . . 5 ⊢ ([(𝑎 ↾ (1...𝑁)) / 𝑢]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑)
7	5, 6	bitri 274	. . . 4 ⊢ ([(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑 ↔ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑)
8	7	rabbii 3425	. . 3 ⊢ {𝑎 ∈ (ℕ₀ ↑_m (1...𝐿)) ∣ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑} = {𝑎 ∈ (ℕ₀ ↑_m (1...𝐿)) ∣ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑}
9		rexfrabdioph.2	. . . . . . 7 ⊢ 𝐿 = (𝑀 + 1)
10		rexfrabdioph.1	. . . . . . . . 9 ⊢ 𝑀 = (𝑁 + 1)
11		nn0p1nn 12536	. . . . . . . . 9 ⊢ (𝑁 ∈ ℕ₀ → (𝑁 + 1) ∈ ℕ)
12	10, 11	eqeltrid 2829	. . . . . . . 8 ⊢ (𝑁 ∈ ℕ₀ → 𝑀 ∈ ℕ)
13	12	peano2nnd 12254	. . . . . . 7 ⊢ (𝑁 ∈ ℕ₀ → (𝑀 + 1) ∈ ℕ)
14	9, 13	eqeltrid 2829	. . . . . 6 ⊢ (𝑁 ∈ ℕ₀ → 𝐿 ∈ ℕ)
15	14	nnnn0d 12557	. . . . 5 ⊢ (𝑁 ∈ ℕ₀ → 𝐿 ∈ ℕ₀)
16	15	adantr 479	. . . 4 ⊢ ((𝑁 ∈ ℕ₀ ∧ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑} ∈ (Dioph‘𝐽)) → 𝐿 ∈ ℕ₀)
17		sbcrot3 42272	. . . . . . . . . 10 ⊢ ([(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑)
18		sbcrot3 42272	. . . . . . . . . . . . 13 ⊢ ([(𝑡‘𝐽) / 𝑦][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐽) / 𝑦]𝜑)
19	18	sbcbii 3831	. . . . . . . . . . . 12 ⊢ ([(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑡‘𝐾) / 𝑥][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐽) / 𝑦]𝜑)
20		sbcrot3 42272	. . . . . . . . . . . 12 ⊢ ([(𝑡‘𝐾) / 𝑥][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
21	19, 20	bitri 274	. . . . . . . . . . 11 ⊢ ([(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
22	21	sbcbii 3831	. . . . . . . . . 10 ⊢ ([(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
23	17, 22	bitr3i 276	. . . . . . . . 9 ⊢ ([(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
24	23	sbcbii 3831	. . . . . . . 8 ⊢ ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
25		reseq1 5974	. . . . . . . . . 10 ⊢ (𝑎 = (𝑡 ↾ (1...𝐿)) → (𝑎 ↾ (1...𝑁)) = ((𝑡 ↾ (1...𝐿)) ↾ (1...𝑁)))
26	25	sbccomieg 42274	. . . . . . . . 9 ⊢ ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [((𝑡 ↾ (1...𝐿)) ↾ (1...𝑁)) / 𝑢][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
27		fzssp1 13571	. . . . . . . . . . . . 13 ⊢ (1...𝑁) ⊆ (1...(𝑁 + 1))
28	10	oveq2i 7424	. . . . . . . . . . . . 13 ⊢ (1...𝑀) = (1...(𝑁 + 1))
29	27, 28	sseqtrri 4011	. . . . . . . . . . . 12 ⊢ (1...𝑁) ⊆ (1...𝑀)
30		fzssp1 13571	. . . . . . . . . . . . 13 ⊢ (1...𝑀) ⊆ (1...(𝑀 + 1))
31	9	oveq2i 7424	. . . . . . . . . . . . 13 ⊢ (1...𝐿) = (1...(𝑀 + 1))
32	30, 31	sseqtrri 4011	. . . . . . . . . . . 12 ⊢ (1...𝑀) ⊆ (1...𝐿)
33	29, 32	sstri 3983	. . . . . . . . . . 11 ⊢ (1...𝑁) ⊆ (1...𝐿)
34		resabs1 6007	. . . . . . . . . . 11 ⊢ ((1...𝑁) ⊆ (1...𝐿) → ((𝑡 ↾ (1...𝐿)) ↾ (1...𝑁)) = (𝑡 ↾ (1...𝑁)))
35		dfsbcq 3772	. . . . . . . . . . 11 ⊢ (((𝑡 ↾ (1...𝐿)) ↾ (1...𝑁)) = (𝑡 ↾ (1...𝑁)) → ([((𝑡 ↾ (1...𝐿)) ↾ (1...𝑁)) / 𝑢][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
36	33, 34, 35	mp2b 10	. . . . . . . . . 10 ⊢ ([((𝑡 ↾ (1...𝐿)) ↾ (1...𝑁)) / 𝑢][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
37		fveq1 6889	. . . . . . . . . . . . 13 ⊢ (𝑎 = (𝑡 ↾ (1...𝐿)) → (𝑎‘𝑀) = ((𝑡 ↾ (1...𝐿))‘𝑀))
38	37	sbccomieg 42274	. . . . . . . . . . . 12 ⊢ ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [((𝑡 ↾ (1...𝐿))‘𝑀) / 𝑣][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
39		elfz1end 13558	. . . . . . . . . . . . . . . 16 ⊢ (𝑀 ∈ ℕ ↔ 𝑀 ∈ (1...𝑀))
40	12, 39	sylib 217	. . . . . . . . . . . . . . 15 ⊢ (𝑁 ∈ ℕ₀ → 𝑀 ∈ (1...𝑀))
41	32, 40	sselid 3971	. . . . . . . . . . . . . 14 ⊢ (𝑁 ∈ ℕ₀ → 𝑀 ∈ (1...𝐿))
42		fvres 6909	. . . . . . . . . . . . . 14 ⊢ (𝑀 ∈ (1...𝐿) → ((𝑡 ↾ (1...𝐿))‘𝑀) = (𝑡‘𝑀))
43		dfsbcq 3772	. . . . . . . . . . . . . 14 ⊢ (((𝑡 ↾ (1...𝐿))‘𝑀) = (𝑡‘𝑀) → ([((𝑡 ↾ (1...𝐿))‘𝑀) / 𝑣][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝑀) / 𝑣][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
44	41, 42, 43	3syl 18	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ₀ → ([((𝑡 ↾ (1...𝐿))‘𝑀) / 𝑣][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝑀) / 𝑣][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
45		vex 3467	. . . . . . . . . . . . . . . . 17 ⊢ 𝑡 ∈ V
46	45	resex 6029	. . . . . . . . . . . . . . . 16 ⊢ (𝑡 ↾ (1...𝐿)) ∈ V
47		fveq1 6889	. . . . . . . . . . . . . . . . 17 ⊢ (𝑎 = (𝑡 ↾ (1...𝐿)) → (𝑎‘𝐿) = ((𝑡 ↾ (1...𝐿))‘𝐿))
48	47	sbcco3gw 4419	. . . . . . . . . . . . . . . 16 ⊢ ((𝑡 ↾ (1...𝐿)) ∈ V → ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [((𝑡 ↾ (1...𝐿))‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
49	46, 48	ax-mp 5	. . . . . . . . . . . . . . 15 ⊢ ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [((𝑡 ↾ (1...𝐿))‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑)
50		elfz1end 13558	. . . . . . . . . . . . . . . . 17 ⊢ (𝐿 ∈ ℕ ↔ 𝐿 ∈ (1...𝐿))
51	14, 50	sylib 217	. . . . . . . . . . . . . . . 16 ⊢ (𝑁 ∈ ℕ₀ → 𝐿 ∈ (1...𝐿))
52		fvres 6909	. . . . . . . . . . . . . . . 16 ⊢ (𝐿 ∈ (1...𝐿) → ((𝑡 ↾ (1...𝐿))‘𝐿) = (𝑡‘𝐿))
53		dfsbcq 3772	. . . . . . . . . . . . . . . 16 ⊢ (((𝑡 ↾ (1...𝐿))‘𝐿) = (𝑡‘𝐿) → ([((𝑡 ↾ (1...𝐿))‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
54	51, 52, 53	3syl 18	. . . . . . . . . . . . . . 15 ⊢ (𝑁 ∈ ℕ₀ → ([((𝑡 ↾ (1...𝐿))‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
55	49, 54	bitrid 282	. . . . . . . . . . . . . 14 ⊢ (𝑁 ∈ ℕ₀ → ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
56	55	sbcbidv 3830	. . . . . . . . . . . . 13 ⊢ (𝑁 ∈ ℕ₀ → ([(𝑡‘𝑀) / 𝑣][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
57	44, 56	bitrd 278	. . . . . . . . . . . 12 ⊢ (𝑁 ∈ ℕ₀ → ([((𝑡 ↾ (1...𝐿))‘𝑀) / 𝑣][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
58	38, 57	bitrid 282	. . . . . . . . . . 11 ⊢ (𝑁 ∈ ℕ₀ → ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
59	58	sbcbidv 3830	. . . . . . . . . 10 ⊢ (𝑁 ∈ ℕ₀ → ([(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
60	36, 59	bitrid 282	. . . . . . . . 9 ⊢ (𝑁 ∈ ℕ₀ → ([((𝑡 ↾ (1...𝐿)) ↾ (1...𝑁)) / 𝑢][(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
61	26, 60	bitrid 282	. . . . . . . 8 ⊢ (𝑁 ∈ ℕ₀ → ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑 ↔ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
62	24, 61	bitrid 282	. . . . . . 7 ⊢ (𝑁 ∈ ℕ₀ → ([(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑 ↔ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑))
63	62	rabbidv 3427	. . . . . 6 ⊢ (𝑁 ∈ ℕ₀ → {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑} = {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑})
64	63	eleq1d 2810	. . . . 5 ⊢ (𝑁 ∈ ℕ₀ → ({𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑} ∈ (Dioph‘𝐽) ↔ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑} ∈ (Dioph‘𝐽)))
65	64	biimpar 476	. . . 4 ⊢ ((𝑁 ∈ ℕ₀ ∧ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑} ∈ (Dioph‘𝐽)) → {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑} ∈ (Dioph‘𝐽))
66		rexfrabdioph.3	. . . . 5 ⊢ 𝐾 = (𝐿 + 1)
67		rexfrabdioph.4	. . . . 5 ⊢ 𝐽 = (𝐾 + 1)
68	66, 67	2rexfrabdioph 42277	. . . 4 ⊢ ((𝐿 ∈ ℕ₀ ∧ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝐿)) / 𝑎][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦][(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑} ∈ (Dioph‘𝐽)) → {𝑎 ∈ (ℕ₀ ↑_m (1...𝐿)) ∣ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑} ∈ (Dioph‘𝐿))
69	16, 65, 68	syl2anc 582	. . 3 ⊢ ((𝑁 ∈ ℕ₀ ∧ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑} ∈ (Dioph‘𝐽)) → {𝑎 ∈ (ℕ₀ ↑_m (1...𝐿)) ∣ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]𝜑} ∈ (Dioph‘𝐿))
70	8, 69	eqeltrid 2829	. 2 ⊢ ((𝑁 ∈ ℕ₀ ∧ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑} ∈ (Dioph‘𝐽)) → {𝑎 ∈ (ℕ₀ ↑_m (1...𝐿)) ∣ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑} ∈ (Dioph‘𝐿))
71	10, 9	2rexfrabdioph 42277	. 2 ⊢ ((𝑁 ∈ ℕ₀ ∧ {𝑎 ∈ (ℕ₀ ↑_m (1...𝐿)) ∣ [(𝑎 ↾ (1...𝑁)) / 𝑢][(𝑎‘𝑀) / 𝑣][(𝑎‘𝐿) / 𝑤]∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑} ∈ (Dioph‘𝐿)) → {𝑢 ∈ (ℕ₀ ↑_m (1...𝑁)) ∣ ∃𝑣 ∈ ℕ₀ ∃𝑤 ∈ ℕ₀ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑} ∈ (Dioph‘𝑁))
72	70, 71	syldan 589	1 ⊢ ((𝑁 ∈ ℕ₀ ∧ {𝑡 ∈ (ℕ₀ ↑_m (1...𝐽)) ∣ [(𝑡 ↾ (1...𝑁)) / 𝑢][(𝑡‘𝑀) / 𝑣][(𝑡‘𝐿) / 𝑤][(𝑡‘𝐾) / 𝑥][(𝑡‘𝐽) / 𝑦]𝜑} ∈ (Dioph‘𝐽)) → {𝑢 ∈ (ℕ₀ ↑_m (1...𝑁)) ∣ ∃𝑣 ∈ ℕ₀ ∃𝑤 ∈ ℕ₀ ∃𝑥 ∈ ℕ₀ ∃𝑦 ∈ ℕ₀ 𝜑} ∈ (Dioph‘𝑁))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 394 = wceq 1533 ∈ wcel 2098 ∃wrex 3060 {crab 3419 Vcvv 3463 [wsbc 3770 ⊆ wss 3941 ↾ cres 5675 ‘cfv 6543 (class class class)co 7413 ↑_m cmap 8838 1c1 11134 + caddc 11136 ℕcn 12237 ℕ₀cn0 12497 ...cfz 13511 Diophcdioph 42236

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-rep 5281 ax-sep 5295 ax-nul 5302 ax-pow 5360 ax-pr 5424 ax-un 7735 ax-inf2 9659 ax-cnex 11189 ax-resscn 11190 ax-1cn 11191 ax-icn 11192 ax-addcl 11193 ax-addrcl 11194 ax-mulcl 11195 ax-mulrcl 11196 ax-mulcom 11197 ax-addass 11198 ax-mulass 11199 ax-distr 11200 ax-i2m1 11201 ax-1ne0 11202 ax-1rid 11203 ax-rnegex 11204 ax-rrecex 11205 ax-cnre 11206 ax-pre-lttri 11207 ax-pre-lttrn 11208 ax-pre-ltadd 11209 ax-pre-mulgt0 11210

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3771 df-csb 3887 df-dif 3944 df-un 3946 df-in 3948 df-ss 3958 df-pss 3961 df-nul 4320 df-if 4526 df-pw 4601 df-sn 4626 df-pr 4628 df-op 4632 df-uni 4905 df-int 4946 df-iun 4994 df-br 5145 df-opab 5207 df-mpt 5228 df-tr 5262 df-id 5571 df-eprel 5577 df-po 5585 df-so 5586 df-fr 5628 df-we 5630 df-xp 5679 df-rel 5680 df-cnv 5681 df-co 5682 df-dm 5683 df-rn 5684 df-res 5685 df-ima 5686 df-pred 6301 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6495 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7369 df-ov 7416 df-oprab 7417 df-mpo 7418 df-of 7679 df-om 7866 df-1st 7987 df-2nd 7988 df-frecs 8280 df-wrecs 8311 df-recs 8385 df-rdg 8424 df-1o 8480 df-oadd 8484 df-er 8718 df-map 8840 df-en 8958 df-dom 8959 df-sdom 8960 df-fin 8961 df-dju 9919 df-card 9957 df-pnf 11275 df-mnf 11276 df-xr 11277 df-ltxr 11278 df-le 11279 df-sub 11471 df-neg 11472 df-nn 12238 df-n0 12498 df-z 12584 df-uz 12848 df-fz 13512 df-hash 14317 df-mzpcl 42204 df-mzp 42205 df-dioph 42237

This theorem is referenced by: 6rexfrabdioph 42280

W3C validator