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Theorem setsstruct 17141
Description: An extensible structure with a replaced slot is an extensible structure. (Contributed by AV, 9-Jun-2021.) (Revised by AV, 14-Nov-2021.)
Assertion
Ref Expression
setsstruct ((𝐸𝑉𝐼 ∈ (ℤ𝑀) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩) → (𝐺 sSet ⟨𝐼, 𝐸⟩) Struct ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩)

Proof of Theorem setsstruct
StepHypRef Expression
1 isstruct 17117 . . . . . 6 (𝐺 Struct ⟨𝑀, 𝑁⟩ ↔ ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ Fun (𝐺 ∖ {∅}) ∧ dom 𝐺 ⊆ (𝑀...𝑁)))
2 simp2 1138 . . . . . . . . . 10 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → 𝐺 Struct ⟨𝑀, 𝑁⟩)
3 simp3l 1203 . . . . . . . . . 10 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → 𝐸𝑉)
4 1z 12552 . . . . . . . . . . . . . . . 16 1 ∈ ℤ
5 nnge1 12200 . . . . . . . . . . . . . . . 16 (𝑀 ∈ ℕ → 1 ≤ 𝑀)
6 eluzuzle 12792 . . . . . . . . . . . . . . . 16 ((1 ∈ ℤ ∧ 1 ≤ 𝑀) → (𝐼 ∈ (ℤ𝑀) → 𝐼 ∈ (ℤ‘1)))
74, 5, 6sylancr 588 . . . . . . . . . . . . . . 15 (𝑀 ∈ ℕ → (𝐼 ∈ (ℤ𝑀) → 𝐼 ∈ (ℤ‘1)))
8 elnnuz 12823 . . . . . . . . . . . . . . 15 (𝐼 ∈ ℕ ↔ 𝐼 ∈ (ℤ‘1))
97, 8imbitrrdi 252 . . . . . . . . . . . . . 14 (𝑀 ∈ ℕ → (𝐼 ∈ (ℤ𝑀) → 𝐼 ∈ ℕ))
109adantld 490 . . . . . . . . . . . . 13 (𝑀 ∈ ℕ → ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → 𝐼 ∈ ℕ))
11103ad2ant1 1134 . . . . . . . . . . . 12 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → 𝐼 ∈ ℕ))
1211a1d 25 . . . . . . . . . . 11 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → (𝐺 Struct ⟨𝑀, 𝑁⟩ → ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → 𝐼 ∈ ℕ)))
13123imp 1111 . . . . . . . . . 10 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → 𝐼 ∈ ℕ)
142, 3, 133jca 1129 . . . . . . . . 9 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → (𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ))
15 op1stg 7949 . . . . . . . . . . . . . . . 16 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (1st ‘⟨𝑀, 𝑁⟩) = 𝑀)
1615breq2d 5098 . . . . . . . . . . . . . . 15 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩) ↔ 𝐼𝑀))
17 eqidd 2738 . . . . . . . . . . . . . . 15 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → 𝐼 = 𝐼)
1816, 17, 15ifbieq12d 4496 . . . . . . . . . . . . . 14 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)) = if(𝐼𝑀, 𝐼, 𝑀))
19183adant3 1133 . . . . . . . . . . . . 13 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)) = if(𝐼𝑀, 𝐼, 𝑀))
2019adantr 480 . . . . . . . . . . . 12 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)) = if(𝐼𝑀, 𝐼, 𝑀))
21 eluz2 12789 . . . . . . . . . . . . . . . 16 (𝐼 ∈ (ℤ𝑀) ↔ (𝑀 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 𝑀𝐼))
22 zre 12523 . . . . . . . . . . . . . . . . . . . 20 (𝐼 ∈ ℤ → 𝐼 ∈ ℝ)
2322rexrd 11190 . . . . . . . . . . . . . . . . . . 19 (𝐼 ∈ ℤ → 𝐼 ∈ ℝ*)
24233ad2ant2 1135 . . . . . . . . . . . . . . . . . 18 ((𝑀 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 𝑀𝐼) → 𝐼 ∈ ℝ*)
25 zre 12523 . . . . . . . . . . . . . . . . . . . 20 (𝑀 ∈ ℤ → 𝑀 ∈ ℝ)
2625rexrd 11190 . . . . . . . . . . . . . . . . . . 19 (𝑀 ∈ ℤ → 𝑀 ∈ ℝ*)
27263ad2ant1 1134 . . . . . . . . . . . . . . . . . 18 ((𝑀 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 𝑀𝐼) → 𝑀 ∈ ℝ*)
28 simp3 1139 . . . . . . . . . . . . . . . . . 18 ((𝑀 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 𝑀𝐼) → 𝑀𝐼)
2924, 27, 283jca 1129 . . . . . . . . . . . . . . . . 17 ((𝑀 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 𝑀𝐼) → (𝐼 ∈ ℝ*𝑀 ∈ ℝ*𝑀𝐼))
3029a1d 25 . . . . . . . . . . . . . . . 16 ((𝑀 ∈ ℤ ∧ 𝐼 ∈ ℤ ∧ 𝑀𝐼) → ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → (𝐼 ∈ ℝ*𝑀 ∈ ℝ*𝑀𝐼)))
3121, 30sylbi 217 . . . . . . . . . . . . . . 15 (𝐼 ∈ (ℤ𝑀) → ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → (𝐼 ∈ ℝ*𝑀 ∈ ℝ*𝑀𝐼)))
3231adantl 481 . . . . . . . . . . . . . 14 ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → (𝐼 ∈ ℝ*𝑀 ∈ ℝ*𝑀𝐼)))
3332impcom 407 . . . . . . . . . . . . 13 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → (𝐼 ∈ ℝ*𝑀 ∈ ℝ*𝑀𝐼))
34 xrmineq 13127 . . . . . . . . . . . . 13 ((𝐼 ∈ ℝ*𝑀 ∈ ℝ*𝑀𝐼) → if(𝐼𝑀, 𝐼, 𝑀) = 𝑀)
3533, 34syl 17 . . . . . . . . . . . 12 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → if(𝐼𝑀, 𝐼, 𝑀) = 𝑀)
3620, 35eqtr2d 2773 . . . . . . . . . . 11 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → 𝑀 = if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)))
37363adant2 1132 . . . . . . . . . 10 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → 𝑀 = if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)))
38 op2ndg 7950 . . . . . . . . . . . . . . 15 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (2nd ‘⟨𝑀, 𝑁⟩) = 𝑁)
3938eqcomd 2743 . . . . . . . . . . . . . 14 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → 𝑁 = (2nd ‘⟨𝑀, 𝑁⟩))
4039breq2d 5098 . . . . . . . . . . . . 13 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → (𝐼𝑁𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩)))
4140, 39, 17ifbieq12d 4496 . . . . . . . . . . . 12 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ) → if(𝐼𝑁, 𝑁, 𝐼) = if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼))
42413adant3 1133 . . . . . . . . . . 11 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → if(𝐼𝑁, 𝑁, 𝐼) = if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼))
43423ad2ant1 1134 . . . . . . . . . 10 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → if(𝐼𝑁, 𝑁, 𝐼) = if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼))
4437, 43opeq12d 4825 . . . . . . . . 9 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩)
4514, 44jca 511 . . . . . . . 8 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ (𝐸𝑉𝐼 ∈ (ℤ𝑀))) → ((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩))
46453exp 1120 . . . . . . 7 ((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) → (𝐺 Struct ⟨𝑀, 𝑁⟩ → ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → ((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩))))
47463ad2ant1 1134 . . . . . 6 (((𝑀 ∈ ℕ ∧ 𝑁 ∈ ℕ ∧ 𝑀𝑁) ∧ Fun (𝐺 ∖ {∅}) ∧ dom 𝐺 ⊆ (𝑀...𝑁)) → (𝐺 Struct ⟨𝑀, 𝑁⟩ → ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → ((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩))))
481, 47sylbi 217 . . . . 5 (𝐺 Struct ⟨𝑀, 𝑁⟩ → (𝐺 Struct ⟨𝑀, 𝑁⟩ → ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → ((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩))))
4948pm2.43i 52 . . . 4 (𝐺 Struct ⟨𝑀, 𝑁⟩ → ((𝐸𝑉𝐼 ∈ (ℤ𝑀)) → ((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩)))
5049expdcom 414 . . 3 (𝐸𝑉 → (𝐼 ∈ (ℤ𝑀) → (𝐺 Struct ⟨𝑀, 𝑁⟩ → ((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩))))
51503imp 1111 . 2 ((𝐸𝑉𝐼 ∈ (ℤ𝑀) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩) → ((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩))
52 setsstruct2 17139 . 2 (((𝐺 Struct ⟨𝑀, 𝑁⟩ ∧ 𝐸𝑉𝐼 ∈ ℕ) ∧ ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩ = ⟨if(𝐼 ≤ (1st ‘⟨𝑀, 𝑁⟩), 𝐼, (1st ‘⟨𝑀, 𝑁⟩)), if(𝐼 ≤ (2nd ‘⟨𝑀, 𝑁⟩), (2nd ‘⟨𝑀, 𝑁⟩), 𝐼)⟩) → (𝐺 sSet ⟨𝐼, 𝐸⟩) Struct ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩)
5351, 52syl 17 1 ((𝐸𝑉𝐼 ∈ (ℤ𝑀) ∧ 𝐺 Struct ⟨𝑀, 𝑁⟩) → (𝐺 sSet ⟨𝐼, 𝐸⟩) Struct ⟨𝑀, if(𝐼𝑁, 𝑁, 𝐼)⟩)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 395  w3a 1087   = wceq 1542  wcel 2114  cdif 3887  wss 3890  c0 4274  ifcif 4467  {csn 4568  cop 4574   class class class wbr 5086  dom cdm 5626  Fun wfun 6488  cfv 6494  (class class class)co 7362  1st c1st 7935  2nd c2nd 7936  1c1 11034  *cxr 11173  cle 11175  cn 12169  cz 12519  cuz 12783  ...cfz 13456   Struct cstr 17111   sSet csts 17128
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 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-sep 5232  ax-nul 5242  ax-pow 5304  ax-pr 5372  ax-un 7684  ax-cnex 11089  ax-resscn 11090  ax-1cn 11091  ax-icn 11092  ax-addcl 11093  ax-addrcl 11094  ax-mulcl 11095  ax-mulrcl 11096  ax-mulcom 11097  ax-addass 11098  ax-mulass 11099  ax-distr 11100  ax-i2m1 11101  ax-1ne0 11102  ax-1rid 11103  ax-rnegex 11104  ax-rrecex 11105  ax-cnre 11106  ax-pre-lttri 11107  ax-pre-lttrn 11108  ax-pre-ltadd 11109  ax-pre-mulgt0 11110
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-nel 3038  df-ral 3053  df-rex 3063  df-reu 3344  df-rab 3391  df-v 3432  df-sbc 3730  df-csb 3839  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-pss 3910  df-nul 4275  df-if 4468  df-pw 4544  df-sn 4569  df-pr 4571  df-op 4575  df-uni 4852  df-iun 4936  df-br 5087  df-opab 5149  df-mpt 5168  df-tr 5194  df-id 5521  df-eprel 5526  df-po 5534  df-so 5535  df-fr 5579  df-we 5581  df-xp 5632  df-rel 5633  df-cnv 5634  df-co 5635  df-dm 5636  df-rn 5637  df-res 5638  df-ima 5639  df-pred 6261  df-ord 6322  df-on 6323  df-lim 6324  df-suc 6325  df-iota 6450  df-fun 6496  df-fn 6497  df-f 6498  df-f1 6499  df-fo 6500  df-f1o 6501  df-fv 6502  df-riota 7319  df-ov 7365  df-oprab 7366  df-mpo 7367  df-om 7813  df-1st 7937  df-2nd 7938  df-frecs 8226  df-wrecs 8257  df-recs 8306  df-rdg 8344  df-1o 8400  df-er 8638  df-en 8889  df-dom 8890  df-sdom 8891  df-fin 8892  df-pnf 11176  df-mnf 11177  df-xr 11178  df-ltxr 11179  df-le 11180  df-sub 11374  df-neg 11375  df-nn 12170  df-n0 12433  df-z 12520  df-uz 12784  df-fz 13457  df-struct 17112  df-sets 17129
This theorem is referenced by: (None)
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