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Theorem poimirlem1 33081
Description: Lemma for poimir 33113- the vertices on either side of a skipped vertex differ in at least two dimensions. (Contributed by Brendan Leahy, 21-Aug-2020.)
Hypotheses
Ref Expression
poimir.0 (𝜑𝑁 ∈ ℕ)
poimirlem2.1 (𝜑𝐹 = (𝑦 ∈ (0...(𝑁 − 1)) ↦ if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0})))))
poimirlem2.2 (𝜑𝑇:(1...𝑁)⟶ℤ)
poimirlem2.3 (𝜑𝑈:(1...𝑁)–1-1-onto→(1...𝑁))
poimirlem1.4 (𝜑𝑀 ∈ (1...(𝑁 − 1)))
Assertion
Ref Expression
poimirlem1 (𝜑 → ¬ ∃*𝑛 ∈ (1...𝑁)((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛))
Distinct variable groups:   𝑗,𝑛,𝑦,𝜑   𝑗,𝐹,𝑛,𝑦   𝑗,𝑀,𝑛,𝑦   𝑗,𝑁,𝑛,𝑦   𝑇,𝑗,𝑛,𝑦   𝑈,𝑗,𝑛,𝑦

Proof of Theorem poimirlem1
Dummy variable 𝑚 is distinct from all other variables.
StepHypRef Expression
1 poimirlem2.3 . . . . 5 (𝜑𝑈:(1...𝑁)–1-1-onto→(1...𝑁))
2 f1of 6104 . . . . 5 (𝑈:(1...𝑁)–1-1-onto→(1...𝑁) → 𝑈:(1...𝑁)⟶(1...𝑁))
31, 2syl 17 . . . 4 (𝜑𝑈:(1...𝑁)⟶(1...𝑁))
4 poimir.0 . . . . . . . . 9 (𝜑𝑁 ∈ ℕ)
54nncnd 10996 . . . . . . . 8 (𝜑𝑁 ∈ ℂ)
6 npcan1 10415 . . . . . . . 8 (𝑁 ∈ ℂ → ((𝑁 − 1) + 1) = 𝑁)
75, 6syl 17 . . . . . . 7 (𝜑 → ((𝑁 − 1) + 1) = 𝑁)
84nnzd 11441 . . . . . . . 8 (𝜑𝑁 ∈ ℤ)
9 peano2zm 11380 . . . . . . . 8 (𝑁 ∈ ℤ → (𝑁 − 1) ∈ ℤ)
10 uzid 11662 . . . . . . . 8 ((𝑁 − 1) ∈ ℤ → (𝑁 − 1) ∈ (ℤ‘(𝑁 − 1)))
11 peano2uz 11701 . . . . . . . 8 ((𝑁 − 1) ∈ (ℤ‘(𝑁 − 1)) → ((𝑁 − 1) + 1) ∈ (ℤ‘(𝑁 − 1)))
128, 9, 10, 114syl 19 . . . . . . 7 (𝜑 → ((𝑁 − 1) + 1) ∈ (ℤ‘(𝑁 − 1)))
137, 12eqeltrrd 2699 . . . . . 6 (𝜑𝑁 ∈ (ℤ‘(𝑁 − 1)))
14 fzss2 12339 . . . . . 6 (𝑁 ∈ (ℤ‘(𝑁 − 1)) → (1...(𝑁 − 1)) ⊆ (1...𝑁))
1513, 14syl 17 . . . . 5 (𝜑 → (1...(𝑁 − 1)) ⊆ (1...𝑁))
16 poimirlem1.4 . . . . 5 (𝜑𝑀 ∈ (1...(𝑁 − 1)))
1715, 16sseldd 3589 . . . 4 (𝜑𝑀 ∈ (1...𝑁))
183, 17ffvelrnd 6326 . . 3 (𝜑 → (𝑈𝑀) ∈ (1...𝑁))
19 fzp1elp1 12352 . . . . . 6 (𝑀 ∈ (1...(𝑁 − 1)) → (𝑀 + 1) ∈ (1...((𝑁 − 1) + 1)))
2016, 19syl 17 . . . . 5 (𝜑 → (𝑀 + 1) ∈ (1...((𝑁 − 1) + 1)))
217oveq2d 6631 . . . . 5 (𝜑 → (1...((𝑁 − 1) + 1)) = (1...𝑁))
2220, 21eleqtrd 2700 . . . 4 (𝜑 → (𝑀 + 1) ∈ (1...𝑁))
233, 22ffvelrnd 6326 . . 3 (𝜑 → (𝑈‘(𝑀 + 1)) ∈ (1...𝑁))
24 imassrn 5446 . . . . . . . . . 10 (𝑈 “ (𝑀...(𝑀 + 1))) ⊆ ran 𝑈
25 frn 6020 . . . . . . . . . . 11 (𝑈:(1...𝑁)⟶(1...𝑁) → ran 𝑈 ⊆ (1...𝑁))
261, 2, 253syl 18 . . . . . . . . . 10 (𝜑 → ran 𝑈 ⊆ (1...𝑁))
2724, 26syl5ss 3599 . . . . . . . . 9 (𝜑 → (𝑈 “ (𝑀...(𝑀 + 1))) ⊆ (1...𝑁))
2827sselda 3588 . . . . . . . 8 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → 𝑛 ∈ (1...𝑁))
29 poimirlem2.2 . . . . . . . . . . 11 (𝜑𝑇:(1...𝑁)⟶ℤ)
3029ffvelrnda 6325 . . . . . . . . . 10 ((𝜑𝑛 ∈ (1...𝑁)) → (𝑇𝑛) ∈ ℤ)
3130zred 11442 . . . . . . . . 9 ((𝜑𝑛 ∈ (1...𝑁)) → (𝑇𝑛) ∈ ℝ)
3231ltp1d 10914 . . . . . . . . 9 ((𝜑𝑛 ∈ (1...𝑁)) → (𝑇𝑛) < ((𝑇𝑛) + 1))
3331, 32ltned 10133 . . . . . . . 8 ((𝜑𝑛 ∈ (1...𝑁)) → (𝑇𝑛) ≠ ((𝑇𝑛) + 1))
3428, 33syldan 487 . . . . . . 7 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → (𝑇𝑛) ≠ ((𝑇𝑛) + 1))
35 poimirlem2.1 . . . . . . . . . . 11 (𝜑𝐹 = (𝑦 ∈ (0...(𝑁 − 1)) ↦ if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0})))))
36 breq1 4626 . . . . . . . . . . . . . . 15 (𝑦 = (𝑀 − 1) → (𝑦 < 𝑀 ↔ (𝑀 − 1) < 𝑀))
37 id 22 . . . . . . . . . . . . . . 15 (𝑦 = (𝑀 − 1) → 𝑦 = (𝑀 − 1))
3836, 37ifbieq1d 4087 . . . . . . . . . . . . . 14 (𝑦 = (𝑀 − 1) → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) = if((𝑀 − 1) < 𝑀, (𝑀 − 1), (𝑦 + 1)))
39 elfzelz 12300 . . . . . . . . . . . . . . . . . 18 (𝑀 ∈ (1...(𝑁 − 1)) → 𝑀 ∈ ℤ)
4016, 39syl 17 . . . . . . . . . . . . . . . . 17 (𝜑𝑀 ∈ ℤ)
4140zred 11442 . . . . . . . . . . . . . . . 16 (𝜑𝑀 ∈ ℝ)
4241ltm1d 10916 . . . . . . . . . . . . . . 15 (𝜑 → (𝑀 − 1) < 𝑀)
4342iftrued 4072 . . . . . . . . . . . . . 14 (𝜑 → if((𝑀 − 1) < 𝑀, (𝑀 − 1), (𝑦 + 1)) = (𝑀 − 1))
4438, 43sylan9eqr 2677 . . . . . . . . . . . . 13 ((𝜑𝑦 = (𝑀 − 1)) → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) = (𝑀 − 1))
4544csbeq1d 3526 . . . . . . . . . . . 12 ((𝜑𝑦 = (𝑀 − 1)) → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑀 − 1) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))))
468, 9syl 17 . . . . . . . . . . . . . . . 16 (𝜑 → (𝑁 − 1) ∈ ℤ)
47 elfzm1b 12375 . . . . . . . . . . . . . . . 16 ((𝑀 ∈ ℤ ∧ (𝑁 − 1) ∈ ℤ) → (𝑀 ∈ (1...(𝑁 − 1)) ↔ (𝑀 − 1) ∈ (0...((𝑁 − 1) − 1))))
4840, 46, 47syl2anc 692 . . . . . . . . . . . . . . 15 (𝜑 → (𝑀 ∈ (1...(𝑁 − 1)) ↔ (𝑀 − 1) ∈ (0...((𝑁 − 1) − 1))))
4916, 48mpbid 222 . . . . . . . . . . . . . 14 (𝜑 → (𝑀 − 1) ∈ (0...((𝑁 − 1) − 1)))
50 oveq2 6623 . . . . . . . . . . . . . . . . . . 19 (𝑗 = (𝑀 − 1) → (1...𝑗) = (1...(𝑀 − 1)))
5150imaeq2d 5435 . . . . . . . . . . . . . . . . . 18 (𝑗 = (𝑀 − 1) → (𝑈 “ (1...𝑗)) = (𝑈 “ (1...(𝑀 − 1))))
5251xpeq1d 5108 . . . . . . . . . . . . . . . . 17 (𝑗 = (𝑀 − 1) → ((𝑈 “ (1...𝑗)) × {1}) = ((𝑈 “ (1...(𝑀 − 1))) × {1}))
5352adantl 482 . . . . . . . . . . . . . . . 16 ((𝜑𝑗 = (𝑀 − 1)) → ((𝑈 “ (1...𝑗)) × {1}) = ((𝑈 “ (1...(𝑀 − 1))) × {1}))
54 oveq1 6622 . . . . . . . . . . . . . . . . . . . 20 (𝑗 = (𝑀 − 1) → (𝑗 + 1) = ((𝑀 − 1) + 1))
5540zcnd 11443 . . . . . . . . . . . . . . . . . . . . 21 (𝜑𝑀 ∈ ℂ)
56 npcan1 10415 . . . . . . . . . . . . . . . . . . . . 21 (𝑀 ∈ ℂ → ((𝑀 − 1) + 1) = 𝑀)
5755, 56syl 17 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → ((𝑀 − 1) + 1) = 𝑀)
5854, 57sylan9eqr 2677 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑗 = (𝑀 − 1)) → (𝑗 + 1) = 𝑀)
5958oveq1d 6630 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑗 = (𝑀 − 1)) → ((𝑗 + 1)...𝑁) = (𝑀...𝑁))
6059imaeq2d 5435 . . . . . . . . . . . . . . . . 17 ((𝜑𝑗 = (𝑀 − 1)) → (𝑈 “ ((𝑗 + 1)...𝑁)) = (𝑈 “ (𝑀...𝑁)))
6160xpeq1d 5108 . . . . . . . . . . . . . . . 16 ((𝜑𝑗 = (𝑀 − 1)) → ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}) = ((𝑈 “ (𝑀...𝑁)) × {0}))
6253, 61uneq12d 3752 . . . . . . . . . . . . . . 15 ((𝜑𝑗 = (𝑀 − 1)) → (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0})) = (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})))
6362oveq2d 6631 . . . . . . . . . . . . . 14 ((𝜑𝑗 = (𝑀 − 1)) → (𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))))
6449, 63csbied 3546 . . . . . . . . . . . . 13 (𝜑(𝑀 − 1) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))))
6564adantr 481 . . . . . . . . . . . 12 ((𝜑𝑦 = (𝑀 − 1)) → (𝑀 − 1) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))))
6645, 65eqtrd 2655 . . . . . . . . . . 11 ((𝜑𝑦 = (𝑀 − 1)) → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))))
6746zcnd 11443 . . . . . . . . . . . . . . 15 (𝜑 → (𝑁 − 1) ∈ ℂ)
68 npcan1 10415 . . . . . . . . . . . . . . 15 ((𝑁 − 1) ∈ ℂ → (((𝑁 − 1) − 1) + 1) = (𝑁 − 1))
6967, 68syl 17 . . . . . . . . . . . . . 14 (𝜑 → (((𝑁 − 1) − 1) + 1) = (𝑁 − 1))
70 peano2zm 11380 . . . . . . . . . . . . . . 15 ((𝑁 − 1) ∈ ℤ → ((𝑁 − 1) − 1) ∈ ℤ)
71 uzid 11662 . . . . . . . . . . . . . . 15 (((𝑁 − 1) − 1) ∈ ℤ → ((𝑁 − 1) − 1) ∈ (ℤ‘((𝑁 − 1) − 1)))
72 peano2uz 11701 . . . . . . . . . . . . . . 15 (((𝑁 − 1) − 1) ∈ (ℤ‘((𝑁 − 1) − 1)) → (((𝑁 − 1) − 1) + 1) ∈ (ℤ‘((𝑁 − 1) − 1)))
7346, 70, 71, 724syl 19 . . . . . . . . . . . . . 14 (𝜑 → (((𝑁 − 1) − 1) + 1) ∈ (ℤ‘((𝑁 − 1) − 1)))
7469, 73eqeltrrd 2699 . . . . . . . . . . . . 13 (𝜑 → (𝑁 − 1) ∈ (ℤ‘((𝑁 − 1) − 1)))
75 fzss2 12339 . . . . . . . . . . . . 13 ((𝑁 − 1) ∈ (ℤ‘((𝑁 − 1) − 1)) → (0...((𝑁 − 1) − 1)) ⊆ (0...(𝑁 − 1)))
7674, 75syl 17 . . . . . . . . . . . 12 (𝜑 → (0...((𝑁 − 1) − 1)) ⊆ (0...(𝑁 − 1)))
7776, 49sseldd 3589 . . . . . . . . . . 11 (𝜑 → (𝑀 − 1) ∈ (0...(𝑁 − 1)))
78 ovexd 6645 . . . . . . . . . . 11 (𝜑 → (𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))) ∈ V)
7935, 66, 77, 78fvmptd 6255 . . . . . . . . . 10 (𝜑 → (𝐹‘(𝑀 − 1)) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))))
8079fveq1d 6160 . . . . . . . . 9 (𝜑 → ((𝐹‘(𝑀 − 1))‘𝑛) = ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})))‘𝑛))
8180adantr 481 . . . . . . . 8 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝐹‘(𝑀 − 1))‘𝑛) = ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})))‘𝑛))
82 ffn 6012 . . . . . . . . . . . 12 (𝑇:(1...𝑁)⟶ℤ → 𝑇 Fn (1...𝑁))
8329, 82syl 17 . . . . . . . . . . 11 (𝜑𝑇 Fn (1...𝑁))
8483adantr 481 . . . . . . . . . 10 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → 𝑇 Fn (1...𝑁))
85 1ex 9995 . . . . . . . . . . . . . . 15 1 ∈ V
86 fnconstg 6060 . . . . . . . . . . . . . . 15 (1 ∈ V → ((𝑈 “ (1...(𝑀 − 1))) × {1}) Fn (𝑈 “ (1...(𝑀 − 1))))
8785, 86ax-mp 5 . . . . . . . . . . . . . 14 ((𝑈 “ (1...(𝑀 − 1))) × {1}) Fn (𝑈 “ (1...(𝑀 − 1)))
88 c0ex 9994 . . . . . . . . . . . . . . 15 0 ∈ V
89 fnconstg 6060 . . . . . . . . . . . . . . 15 (0 ∈ V → ((𝑈 “ (𝑀...𝑁)) × {0}) Fn (𝑈 “ (𝑀...𝑁)))
9088, 89ax-mp 5 . . . . . . . . . . . . . 14 ((𝑈 “ (𝑀...𝑁)) × {0}) Fn (𝑈 “ (𝑀...𝑁))
9187, 90pm3.2i 471 . . . . . . . . . . . . 13 (((𝑈 “ (1...(𝑀 − 1))) × {1}) Fn (𝑈 “ (1...(𝑀 − 1))) ∧ ((𝑈 “ (𝑀...𝑁)) × {0}) Fn (𝑈 “ (𝑀...𝑁)))
92 dff1o3 6110 . . . . . . . . . . . . . . . 16 (𝑈:(1...𝑁)–1-1-onto→(1...𝑁) ↔ (𝑈:(1...𝑁)–onto→(1...𝑁) ∧ Fun 𝑈))
9392simprbi 480 . . . . . . . . . . . . . . 15 (𝑈:(1...𝑁)–1-1-onto→(1...𝑁) → Fun 𝑈)
94 imain 5942 . . . . . . . . . . . . . . 15 (Fun 𝑈 → (𝑈 “ ((1...(𝑀 − 1)) ∩ (𝑀...𝑁))) = ((𝑈 “ (1...(𝑀 − 1))) ∩ (𝑈 “ (𝑀...𝑁))))
951, 93, 943syl 18 . . . . . . . . . . . . . 14 (𝜑 → (𝑈 “ ((1...(𝑀 − 1)) ∩ (𝑀...𝑁))) = ((𝑈 “ (1...(𝑀 − 1))) ∩ (𝑈 “ (𝑀...𝑁))))
96 fzdisj 12326 . . . . . . . . . . . . . . . . 17 ((𝑀 − 1) < 𝑀 → ((1...(𝑀 − 1)) ∩ (𝑀...𝑁)) = ∅)
9742, 96syl 17 . . . . . . . . . . . . . . . 16 (𝜑 → ((1...(𝑀 − 1)) ∩ (𝑀...𝑁)) = ∅)
9897imaeq2d 5435 . . . . . . . . . . . . . . 15 (𝜑 → (𝑈 “ ((1...(𝑀 − 1)) ∩ (𝑀...𝑁))) = (𝑈 “ ∅))
99 ima0 5450 . . . . . . . . . . . . . . 15 (𝑈 “ ∅) = ∅
10098, 99syl6eq 2671 . . . . . . . . . . . . . 14 (𝜑 → (𝑈 “ ((1...(𝑀 − 1)) ∩ (𝑀...𝑁))) = ∅)
10195, 100eqtr3d 2657 . . . . . . . . . . . . 13 (𝜑 → ((𝑈 “ (1...(𝑀 − 1))) ∩ (𝑈 “ (𝑀...𝑁))) = ∅)
102 fnun 5965 . . . . . . . . . . . . 13 (((((𝑈 “ (1...(𝑀 − 1))) × {1}) Fn (𝑈 “ (1...(𝑀 − 1))) ∧ ((𝑈 “ (𝑀...𝑁)) × {0}) Fn (𝑈 “ (𝑀...𝑁))) ∧ ((𝑈 “ (1...(𝑀 − 1))) ∩ (𝑈 “ (𝑀...𝑁))) = ∅) → (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})) Fn ((𝑈 “ (1...(𝑀 − 1))) ∪ (𝑈 “ (𝑀...𝑁))))
10391, 101, 102sylancr 694 . . . . . . . . . . . 12 (𝜑 → (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})) Fn ((𝑈 “ (1...(𝑀 − 1))) ∪ (𝑈 “ (𝑀...𝑁))))
104 elfzuz 12296 . . . . . . . . . . . . . . . . . . . 20 (𝑀 ∈ (1...(𝑁 − 1)) → 𝑀 ∈ (ℤ‘1))
10516, 104syl 17 . . . . . . . . . . . . . . . . . . 19 (𝜑𝑀 ∈ (ℤ‘1))
10657, 105eqeltrd 2698 . . . . . . . . . . . . . . . . . 18 (𝜑 → ((𝑀 − 1) + 1) ∈ (ℤ‘1))
107 peano2zm 11380 . . . . . . . . . . . . . . . . . . . . . 22 (𝑀 ∈ ℤ → (𝑀 − 1) ∈ ℤ)
108 uzid 11662 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑀 − 1) ∈ ℤ → (𝑀 − 1) ∈ (ℤ‘(𝑀 − 1)))
109 peano2uz 11701 . . . . . . . . . . . . . . . . . . . . . 22 ((𝑀 − 1) ∈ (ℤ‘(𝑀 − 1)) → ((𝑀 − 1) + 1) ∈ (ℤ‘(𝑀 − 1)))
11040, 107, 108, 1094syl 19 . . . . . . . . . . . . . . . . . . . . 21 (𝜑 → ((𝑀 − 1) + 1) ∈ (ℤ‘(𝑀 − 1)))
11157, 110eqeltrrd 2699 . . . . . . . . . . . . . . . . . . . 20 (𝜑𝑀 ∈ (ℤ‘(𝑀 − 1)))
112 peano2uz 11701 . . . . . . . . . . . . . . . . . . . 20 (𝑀 ∈ (ℤ‘(𝑀 − 1)) → (𝑀 + 1) ∈ (ℤ‘(𝑀 − 1)))
113 uzss 11668 . . . . . . . . . . . . . . . . . . . 20 ((𝑀 + 1) ∈ (ℤ‘(𝑀 − 1)) → (ℤ‘(𝑀 + 1)) ⊆ (ℤ‘(𝑀 − 1)))
114111, 112, 1133syl 18 . . . . . . . . . . . . . . . . . . 19 (𝜑 → (ℤ‘(𝑀 + 1)) ⊆ (ℤ‘(𝑀 − 1)))
115 elfzuz3 12297 . . . . . . . . . . . . . . . . . . . . 21 (𝑀 ∈ (1...(𝑁 − 1)) → (𝑁 − 1) ∈ (ℤ𝑀))
116 eluzp1p1 11673 . . . . . . . . . . . . . . . . . . . . 21 ((𝑁 − 1) ∈ (ℤ𝑀) → ((𝑁 − 1) + 1) ∈ (ℤ‘(𝑀 + 1)))
11716, 115, 1163syl 18 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → ((𝑁 − 1) + 1) ∈ (ℤ‘(𝑀 + 1)))
1187, 117eqeltrrd 2699 . . . . . . . . . . . . . . . . . . 19 (𝜑𝑁 ∈ (ℤ‘(𝑀 + 1)))
119114, 118sseldd 3589 . . . . . . . . . . . . . . . . . 18 (𝜑𝑁 ∈ (ℤ‘(𝑀 − 1)))
120 fzsplit2 12324 . . . . . . . . . . . . . . . . . 18 ((((𝑀 − 1) + 1) ∈ (ℤ‘1) ∧ 𝑁 ∈ (ℤ‘(𝑀 − 1))) → (1...𝑁) = ((1...(𝑀 − 1)) ∪ (((𝑀 − 1) + 1)...𝑁)))
121106, 119, 120syl2anc 692 . . . . . . . . . . . . . . . . 17 (𝜑 → (1...𝑁) = ((1...(𝑀 − 1)) ∪ (((𝑀 − 1) + 1)...𝑁)))
12257oveq1d 6630 . . . . . . . . . . . . . . . . . 18 (𝜑 → (((𝑀 − 1) + 1)...𝑁) = (𝑀...𝑁))
123122uneq2d 3751 . . . . . . . . . . . . . . . . 17 (𝜑 → ((1...(𝑀 − 1)) ∪ (((𝑀 − 1) + 1)...𝑁)) = ((1...(𝑀 − 1)) ∪ (𝑀...𝑁)))
124121, 123eqtrd 2655 . . . . . . . . . . . . . . . 16 (𝜑 → (1...𝑁) = ((1...(𝑀 − 1)) ∪ (𝑀...𝑁)))
125124imaeq2d 5435 . . . . . . . . . . . . . . 15 (𝜑 → (𝑈 “ (1...𝑁)) = (𝑈 “ ((1...(𝑀 − 1)) ∪ (𝑀...𝑁))))
126 imaundi 5514 . . . . . . . . . . . . . . 15 (𝑈 “ ((1...(𝑀 − 1)) ∪ (𝑀...𝑁))) = ((𝑈 “ (1...(𝑀 − 1))) ∪ (𝑈 “ (𝑀...𝑁)))
127125, 126syl6eq 2671 . . . . . . . . . . . . . 14 (𝜑 → (𝑈 “ (1...𝑁)) = ((𝑈 “ (1...(𝑀 − 1))) ∪ (𝑈 “ (𝑀...𝑁))))
128 f1ofo 6111 . . . . . . . . . . . . . . 15 (𝑈:(1...𝑁)–1-1-onto→(1...𝑁) → 𝑈:(1...𝑁)–onto→(1...𝑁))
129 foima 6087 . . . . . . . . . . . . . . 15 (𝑈:(1...𝑁)–onto→(1...𝑁) → (𝑈 “ (1...𝑁)) = (1...𝑁))
1301, 128, 1293syl 18 . . . . . . . . . . . . . 14 (𝜑 → (𝑈 “ (1...𝑁)) = (1...𝑁))
131127, 130eqtr3d 2657 . . . . . . . . . . . . 13 (𝜑 → ((𝑈 “ (1...(𝑀 − 1))) ∪ (𝑈 “ (𝑀...𝑁))) = (1...𝑁))
132131fneq2d 5950 . . . . . . . . . . . 12 (𝜑 → ((((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})) Fn ((𝑈 “ (1...(𝑀 − 1))) ∪ (𝑈 “ (𝑀...𝑁))) ↔ (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})) Fn (1...𝑁)))
133103, 132mpbid 222 . . . . . . . . . . 11 (𝜑 → (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})) Fn (1...𝑁))
134133adantr 481 . . . . . . . . . 10 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})) Fn (1...𝑁))
135 ovexd 6645 . . . . . . . . . 10 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → (1...𝑁) ∈ V)
136 inidm 3806 . . . . . . . . . 10 ((1...𝑁) ∩ (1...𝑁)) = (1...𝑁)
137 eqidd 2622 . . . . . . . . . 10 (((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) ∧ 𝑛 ∈ (1...𝑁)) → (𝑇𝑛) = (𝑇𝑛))
138101adantr 481 . . . . . . . . . . . . 13 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝑈 “ (1...(𝑀 − 1))) ∩ (𝑈 “ (𝑀...𝑁))) = ∅)
139 fzss2 12339 . . . . . . . . . . . . . . 15 (𝑁 ∈ (ℤ‘(𝑀 + 1)) → (𝑀...(𝑀 + 1)) ⊆ (𝑀...𝑁))
140 imass2 5470 . . . . . . . . . . . . . . 15 ((𝑀...(𝑀 + 1)) ⊆ (𝑀...𝑁) → (𝑈 “ (𝑀...(𝑀 + 1))) ⊆ (𝑈 “ (𝑀...𝑁)))
141118, 139, 1403syl 18 . . . . . . . . . . . . . 14 (𝜑 → (𝑈 “ (𝑀...(𝑀 + 1))) ⊆ (𝑈 “ (𝑀...𝑁)))
142141sselda 3588 . . . . . . . . . . . . 13 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → 𝑛 ∈ (𝑈 “ (𝑀...𝑁)))
143 fvun2 6237 . . . . . . . . . . . . . 14 ((((𝑈 “ (1...(𝑀 − 1))) × {1}) Fn (𝑈 “ (1...(𝑀 − 1))) ∧ ((𝑈 “ (𝑀...𝑁)) × {0}) Fn (𝑈 “ (𝑀...𝑁)) ∧ (((𝑈 “ (1...(𝑀 − 1))) ∩ (𝑈 “ (𝑀...𝑁))) = ∅ ∧ 𝑛 ∈ (𝑈 “ (𝑀...𝑁)))) → ((((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))‘𝑛) = (((𝑈 “ (𝑀...𝑁)) × {0})‘𝑛))
14487, 90, 143mp3an12 1411 . . . . . . . . . . . . 13 ((((𝑈 “ (1...(𝑀 − 1))) ∩ (𝑈 “ (𝑀...𝑁))) = ∅ ∧ 𝑛 ∈ (𝑈 “ (𝑀...𝑁))) → ((((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))‘𝑛) = (((𝑈 “ (𝑀...𝑁)) × {0})‘𝑛))
145138, 142, 144syl2anc 692 . . . . . . . . . . . 12 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))‘𝑛) = (((𝑈 “ (𝑀...𝑁)) × {0})‘𝑛))
14688fvconst2 6434 . . . . . . . . . . . . 13 (𝑛 ∈ (𝑈 “ (𝑀...𝑁)) → (((𝑈 “ (𝑀...𝑁)) × {0})‘𝑛) = 0)
147142, 146syl 17 . . . . . . . . . . . 12 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → (((𝑈 “ (𝑀...𝑁)) × {0})‘𝑛) = 0)
148145, 147eqtrd 2655 . . . . . . . . . . 11 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))‘𝑛) = 0)
149148adantr 481 . . . . . . . . . 10 (((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) ∧ 𝑛 ∈ (1...𝑁)) → ((((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0}))‘𝑛) = 0)
15084, 134, 135, 135, 136, 137, 149ofval 6871 . . . . . . . . 9 (((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) ∧ 𝑛 ∈ (1...𝑁)) → ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})))‘𝑛) = ((𝑇𝑛) + 0))
15128, 150mpdan 701 . . . . . . . 8 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 − 1))) × {1}) ∪ ((𝑈 “ (𝑀...𝑁)) × {0})))‘𝑛) = ((𝑇𝑛) + 0))
15230zcnd 11443 . . . . . . . . . 10 ((𝜑𝑛 ∈ (1...𝑁)) → (𝑇𝑛) ∈ ℂ)
153152addid1d 10196 . . . . . . . . 9 ((𝜑𝑛 ∈ (1...𝑁)) → ((𝑇𝑛) + 0) = (𝑇𝑛))
15428, 153syldan 487 . . . . . . . 8 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝑇𝑛) + 0) = (𝑇𝑛))
15581, 151, 1543eqtrd 2659 . . . . . . 7 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝐹‘(𝑀 − 1))‘𝑛) = (𝑇𝑛))
156 breq1 4626 . . . . . . . . . . . . . . 15 (𝑦 = 𝑀 → (𝑦 < 𝑀𝑀 < 𝑀))
157 oveq1 6622 . . . . . . . . . . . . . . 15 (𝑦 = 𝑀 → (𝑦 + 1) = (𝑀 + 1))
158156, 157ifbieq2d 4089 . . . . . . . . . . . . . 14 (𝑦 = 𝑀 → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) = if(𝑀 < 𝑀, 𝑦, (𝑀 + 1)))
15941ltnrd 10131 . . . . . . . . . . . . . . 15 (𝜑 → ¬ 𝑀 < 𝑀)
160159iffalsed 4075 . . . . . . . . . . . . . 14 (𝜑 → if(𝑀 < 𝑀, 𝑦, (𝑀 + 1)) = (𝑀 + 1))
161158, 160sylan9eqr 2677 . . . . . . . . . . . . 13 ((𝜑𝑦 = 𝑀) → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) = (𝑀 + 1))
162161csbeq1d 3526 . . . . . . . . . . . 12 ((𝜑𝑦 = 𝑀) → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑀 + 1) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))))
163 ovex 6643 . . . . . . . . . . . . 13 (𝑀 + 1) ∈ V
164 oveq2 6623 . . . . . . . . . . . . . . . . 17 (𝑗 = (𝑀 + 1) → (1...𝑗) = (1...(𝑀 + 1)))
165164imaeq2d 5435 . . . . . . . . . . . . . . . 16 (𝑗 = (𝑀 + 1) → (𝑈 “ (1...𝑗)) = (𝑈 “ (1...(𝑀 + 1))))
166165xpeq1d 5108 . . . . . . . . . . . . . . 15 (𝑗 = (𝑀 + 1) → ((𝑈 “ (1...𝑗)) × {1}) = ((𝑈 “ (1...(𝑀 + 1))) × {1}))
167 oveq1 6622 . . . . . . . . . . . . . . . . . 18 (𝑗 = (𝑀 + 1) → (𝑗 + 1) = ((𝑀 + 1) + 1))
168167oveq1d 6630 . . . . . . . . . . . . . . . . 17 (𝑗 = (𝑀 + 1) → ((𝑗 + 1)...𝑁) = (((𝑀 + 1) + 1)...𝑁))
169168imaeq2d 5435 . . . . . . . . . . . . . . . 16 (𝑗 = (𝑀 + 1) → (𝑈 “ ((𝑗 + 1)...𝑁)) = (𝑈 “ (((𝑀 + 1) + 1)...𝑁)))
170169xpeq1d 5108 . . . . . . . . . . . . . . 15 (𝑗 = (𝑀 + 1) → ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}) = ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))
171166, 170uneq12d 3752 . . . . . . . . . . . . . 14 (𝑗 = (𝑀 + 1) → (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0})) = (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})))
172171oveq2d 6631 . . . . . . . . . . . . 13 (𝑗 = (𝑀 + 1) → (𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))))
173163, 172csbie 3545 . . . . . . . . . . . 12 (𝑀 + 1) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})))
174162, 173syl6eq 2671 . . . . . . . . . . 11 ((𝜑𝑦 = 𝑀) → if(𝑦 < 𝑀, 𝑦, (𝑦 + 1)) / 𝑗(𝑇𝑓 + (((𝑈 “ (1...𝑗)) × {1}) ∪ ((𝑈 “ ((𝑗 + 1)...𝑁)) × {0}))) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))))
175 1eluzge0 11692 . . . . . . . . . . . . 13 1 ∈ (ℤ‘0)
176 fzss1 12338 . . . . . . . . . . . . 13 (1 ∈ (ℤ‘0) → (1...(𝑁 − 1)) ⊆ (0...(𝑁 − 1)))
177175, 176ax-mp 5 . . . . . . . . . . . 12 (1...(𝑁 − 1)) ⊆ (0...(𝑁 − 1))
178177, 16sseldi 3586 . . . . . . . . . . 11 (𝜑𝑀 ∈ (0...(𝑁 − 1)))
179 ovexd 6645 . . . . . . . . . . 11 (𝜑 → (𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))) ∈ V)
18035, 174, 178, 179fvmptd 6255 . . . . . . . . . 10 (𝜑 → (𝐹𝑀) = (𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))))
181180fveq1d 6160 . . . . . . . . 9 (𝜑 → ((𝐹𝑀)‘𝑛) = ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})))‘𝑛))
182181adantr 481 . . . . . . . 8 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝐹𝑀)‘𝑛) = ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})))‘𝑛))
183 fnconstg 6060 . . . . . . . . . . . . . . 15 (1 ∈ V → ((𝑈 “ (1...(𝑀 + 1))) × {1}) Fn (𝑈 “ (1...(𝑀 + 1))))
18485, 183ax-mp 5 . . . . . . . . . . . . . 14 ((𝑈 “ (1...(𝑀 + 1))) × {1}) Fn (𝑈 “ (1...(𝑀 + 1)))
185 fnconstg 6060 . . . . . . . . . . . . . . 15 (0 ∈ V → ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}) Fn (𝑈 “ (((𝑀 + 1) + 1)...𝑁)))
18688, 185ax-mp 5 . . . . . . . . . . . . . 14 ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}) Fn (𝑈 “ (((𝑀 + 1) + 1)...𝑁))
187184, 186pm3.2i 471 . . . . . . . . . . . . 13 (((𝑈 “ (1...(𝑀 + 1))) × {1}) Fn (𝑈 “ (1...(𝑀 + 1))) ∧ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}) Fn (𝑈 “ (((𝑀 + 1) + 1)...𝑁)))
188 imain 5942 . . . . . . . . . . . . . . . 16 (Fun 𝑈 → (𝑈 “ ((1...(𝑀 + 1)) ∩ (((𝑀 + 1) + 1)...𝑁))) = ((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))))
1891, 93, 1883syl 18 . . . . . . . . . . . . . . 15 (𝜑 → (𝑈 “ ((1...(𝑀 + 1)) ∩ (((𝑀 + 1) + 1)...𝑁))) = ((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))))
190 peano2re 10169 . . . . . . . . . . . . . . . . . . 19 (𝑀 ∈ ℝ → (𝑀 + 1) ∈ ℝ)
19141, 190syl 17 . . . . . . . . . . . . . . . . . 18 (𝜑 → (𝑀 + 1) ∈ ℝ)
192191ltp1d 10914 . . . . . . . . . . . . . . . . 17 (𝜑 → (𝑀 + 1) < ((𝑀 + 1) + 1))
193 fzdisj 12326 . . . . . . . . . . . . . . . . 17 ((𝑀 + 1) < ((𝑀 + 1) + 1) → ((1...(𝑀 + 1)) ∩ (((𝑀 + 1) + 1)...𝑁)) = ∅)
194192, 193syl 17 . . . . . . . . . . . . . . . 16 (𝜑 → ((1...(𝑀 + 1)) ∩ (((𝑀 + 1) + 1)...𝑁)) = ∅)
195194imaeq2d 5435 . . . . . . . . . . . . . . 15 (𝜑 → (𝑈 “ ((1...(𝑀 + 1)) ∩ (((𝑀 + 1) + 1)...𝑁))) = (𝑈 “ ∅))
196189, 195eqtr3d 2657 . . . . . . . . . . . . . 14 (𝜑 → ((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) = (𝑈 “ ∅))
197196, 99syl6eq 2671 . . . . . . . . . . . . 13 (𝜑 → ((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) = ∅)
198 fnun 5965 . . . . . . . . . . . . 13 (((((𝑈 “ (1...(𝑀 + 1))) × {1}) Fn (𝑈 “ (1...(𝑀 + 1))) ∧ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}) Fn (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) ∧ ((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) = ∅) → (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})) Fn ((𝑈 “ (1...(𝑀 + 1))) ∪ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))))
199187, 197, 198sylancr 694 . . . . . . . . . . . 12 (𝜑 → (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})) Fn ((𝑈 “ (1...(𝑀 + 1))) ∪ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))))
200 fzsplit 12325 . . . . . . . . . . . . . . . . 17 ((𝑀 + 1) ∈ (1...𝑁) → (1...𝑁) = ((1...(𝑀 + 1)) ∪ (((𝑀 + 1) + 1)...𝑁)))
20122, 200syl 17 . . . . . . . . . . . . . . . 16 (𝜑 → (1...𝑁) = ((1...(𝑀 + 1)) ∪ (((𝑀 + 1) + 1)...𝑁)))
202201imaeq2d 5435 . . . . . . . . . . . . . . 15 (𝜑 → (𝑈 “ (1...𝑁)) = (𝑈 “ ((1...(𝑀 + 1)) ∪ (((𝑀 + 1) + 1)...𝑁))))
203 imaundi 5514 . . . . . . . . . . . . . . 15 (𝑈 “ ((1...(𝑀 + 1)) ∪ (((𝑀 + 1) + 1)...𝑁))) = ((𝑈 “ (1...(𝑀 + 1))) ∪ (𝑈 “ (((𝑀 + 1) + 1)...𝑁)))
204202, 203syl6eq 2671 . . . . . . . . . . . . . 14 (𝜑 → (𝑈 “ (1...𝑁)) = ((𝑈 “ (1...(𝑀 + 1))) ∪ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))))
205204, 130eqtr3d 2657 . . . . . . . . . . . . 13 (𝜑 → ((𝑈 “ (1...(𝑀 + 1))) ∪ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) = (1...𝑁))
206205fneq2d 5950 . . . . . . . . . . . 12 (𝜑 → ((((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})) Fn ((𝑈 “ (1...(𝑀 + 1))) ∪ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) ↔ (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})) Fn (1...𝑁)))
207199, 206mpbid 222 . . . . . . . . . . 11 (𝜑 → (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})) Fn (1...𝑁))
208207adantr 481 . . . . . . . . . 10 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})) Fn (1...𝑁))
209197adantr 481 . . . . . . . . . . . . 13 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) = ∅)
210 fzss1 12338 . . . . . . . . . . . . . . 15 (𝑀 ∈ (ℤ‘1) → (𝑀...(𝑀 + 1)) ⊆ (1...(𝑀 + 1)))
211 imass2 5470 . . . . . . . . . . . . . . 15 ((𝑀...(𝑀 + 1)) ⊆ (1...(𝑀 + 1)) → (𝑈 “ (𝑀...(𝑀 + 1))) ⊆ (𝑈 “ (1...(𝑀 + 1))))
212105, 210, 2113syl 18 . . . . . . . . . . . . . 14 (𝜑 → (𝑈 “ (𝑀...(𝑀 + 1))) ⊆ (𝑈 “ (1...(𝑀 + 1))))
213212sselda 3588 . . . . . . . . . . . . 13 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → 𝑛 ∈ (𝑈 “ (1...(𝑀 + 1))))
214 fvun1 6236 . . . . . . . . . . . . . 14 ((((𝑈 “ (1...(𝑀 + 1))) × {1}) Fn (𝑈 “ (1...(𝑀 + 1))) ∧ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}) Fn (𝑈 “ (((𝑀 + 1) + 1)...𝑁)) ∧ (((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) = ∅ ∧ 𝑛 ∈ (𝑈 “ (1...(𝑀 + 1))))) → ((((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))‘𝑛) = (((𝑈 “ (1...(𝑀 + 1))) × {1})‘𝑛))
215184, 186, 214mp3an12 1411 . . . . . . . . . . . . 13 ((((𝑈 “ (1...(𝑀 + 1))) ∩ (𝑈 “ (((𝑀 + 1) + 1)...𝑁))) = ∅ ∧ 𝑛 ∈ (𝑈 “ (1...(𝑀 + 1)))) → ((((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))‘𝑛) = (((𝑈 “ (1...(𝑀 + 1))) × {1})‘𝑛))
216209, 213, 215syl2anc 692 . . . . . . . . . . . 12 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))‘𝑛) = (((𝑈 “ (1...(𝑀 + 1))) × {1})‘𝑛))
21785fvconst2 6434 . . . . . . . . . . . . 13 (𝑛 ∈ (𝑈 “ (1...(𝑀 + 1))) → (((𝑈 “ (1...(𝑀 + 1))) × {1})‘𝑛) = 1)
218213, 217syl 17 . . . . . . . . . . . 12 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → (((𝑈 “ (1...(𝑀 + 1))) × {1})‘𝑛) = 1)
219216, 218eqtrd 2655 . . . . . . . . . . 11 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))‘𝑛) = 1)
220219adantr 481 . . . . . . . . . 10 (((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) ∧ 𝑛 ∈ (1...𝑁)) → ((((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0}))‘𝑛) = 1)
22184, 208, 135, 135, 136, 137, 220ofval 6871 . . . . . . . . 9 (((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) ∧ 𝑛 ∈ (1...𝑁)) → ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})))‘𝑛) = ((𝑇𝑛) + 1))
22228, 221mpdan 701 . . . . . . . 8 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝑇𝑓 + (((𝑈 “ (1...(𝑀 + 1))) × {1}) ∪ ((𝑈 “ (((𝑀 + 1) + 1)...𝑁)) × {0})))‘𝑛) = ((𝑇𝑛) + 1))
223182, 222eqtrd 2655 . . . . . . 7 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝐹𝑀)‘𝑛) = ((𝑇𝑛) + 1))
22434, 155, 2233netr4d 2867 . . . . . 6 ((𝜑𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))) → ((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛))
225224ralrimiva 2962 . . . . 5 (𝜑 → ∀𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛))
226 fzpr 12354 . . . . . . . . 9 (𝑀 ∈ ℤ → (𝑀...(𝑀 + 1)) = {𝑀, (𝑀 + 1)})
22716, 39, 2263syl 18 . . . . . . . 8 (𝜑 → (𝑀...(𝑀 + 1)) = {𝑀, (𝑀 + 1)})
228227imaeq2d 5435 . . . . . . 7 (𝜑 → (𝑈 “ (𝑀...(𝑀 + 1))) = (𝑈 “ {𝑀, (𝑀 + 1)}))
229 f1ofn 6105 . . . . . . . . 9 (𝑈:(1...𝑁)–1-1-onto→(1...𝑁) → 𝑈 Fn (1...𝑁))
2301, 229syl 17 . . . . . . . 8 (𝜑𝑈 Fn (1...𝑁))
231 fnimapr 6229 . . . . . . . 8 ((𝑈 Fn (1...𝑁) ∧ 𝑀 ∈ (1...𝑁) ∧ (𝑀 + 1) ∈ (1...𝑁)) → (𝑈 “ {𝑀, (𝑀 + 1)}) = {(𝑈𝑀), (𝑈‘(𝑀 + 1))})
232230, 17, 22, 231syl3anc 1323 . . . . . . 7 (𝜑 → (𝑈 “ {𝑀, (𝑀 + 1)}) = {(𝑈𝑀), (𝑈‘(𝑀 + 1))})
233228, 232eqtrd 2655 . . . . . 6 (𝜑 → (𝑈 “ (𝑀...(𝑀 + 1))) = {(𝑈𝑀), (𝑈‘(𝑀 + 1))})
234233raleqdv 3137 . . . . 5 (𝜑 → (∀𝑛 ∈ (𝑈 “ (𝑀...(𝑀 + 1)))((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ↔ ∀𝑛 ∈ {(𝑈𝑀), (𝑈‘(𝑀 + 1))} ((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛)))
235225, 234mpbid 222 . . . 4 (𝜑 → ∀𝑛 ∈ {(𝑈𝑀), (𝑈‘(𝑀 + 1))} ((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛))
236 fvex 6168 . . . . 5 (𝑈𝑀) ∈ V
237 fvex 6168 . . . . 5 (𝑈‘(𝑀 + 1)) ∈ V
238 fveq2 6158 . . . . . 6 (𝑛 = (𝑈𝑀) → ((𝐹‘(𝑀 − 1))‘𝑛) = ((𝐹‘(𝑀 − 1))‘(𝑈𝑀)))
239 fveq2 6158 . . . . . 6 (𝑛 = (𝑈𝑀) → ((𝐹𝑀)‘𝑛) = ((𝐹𝑀)‘(𝑈𝑀)))
240238, 239neeq12d 2851 . . . . 5 (𝑛 = (𝑈𝑀) → (((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ↔ ((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀))))
241 fveq2 6158 . . . . . 6 (𝑛 = (𝑈‘(𝑀 + 1)) → ((𝐹‘(𝑀 − 1))‘𝑛) = ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))))
242 fveq2 6158 . . . . . 6 (𝑛 = (𝑈‘(𝑀 + 1)) → ((𝐹𝑀)‘𝑛) = ((𝐹𝑀)‘(𝑈‘(𝑀 + 1))))
243241, 242neeq12d 2851 . . . . 5 (𝑛 = (𝑈‘(𝑀 + 1)) → (((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ↔ ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))) ≠ ((𝐹𝑀)‘(𝑈‘(𝑀 + 1)))))
244236, 237, 240, 243ralpr 4216 . . . 4 (∀𝑛 ∈ {(𝑈𝑀), (𝑈‘(𝑀 + 1))} ((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ↔ (((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))) ≠ ((𝐹𝑀)‘(𝑈‘(𝑀 + 1)))))
245235, 244sylib 208 . . 3 (𝜑 → (((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))) ≠ ((𝐹𝑀)‘(𝑈‘(𝑀 + 1)))))
24641ltp1d 10914 . . . . 5 (𝜑𝑀 < (𝑀 + 1))
24741, 246ltned 10133 . . . 4 (𝜑𝑀 ≠ (𝑀 + 1))
248 f1of1 6103 . . . . . . 7 (𝑈:(1...𝑁)–1-1-onto→(1...𝑁) → 𝑈:(1...𝑁)–1-1→(1...𝑁))
2491, 248syl 17 . . . . . 6 (𝜑𝑈:(1...𝑁)–1-1→(1...𝑁))
250 f1veqaeq 6479 . . . . . 6 ((𝑈:(1...𝑁)–1-1→(1...𝑁) ∧ (𝑀 ∈ (1...𝑁) ∧ (𝑀 + 1) ∈ (1...𝑁))) → ((𝑈𝑀) = (𝑈‘(𝑀 + 1)) → 𝑀 = (𝑀 + 1)))
251249, 17, 22, 250syl12anc 1321 . . . . 5 (𝜑 → ((𝑈𝑀) = (𝑈‘(𝑀 + 1)) → 𝑀 = (𝑀 + 1)))
252251necon3d 2811 . . . 4 (𝜑 → (𝑀 ≠ (𝑀 + 1) → (𝑈𝑀) ≠ (𝑈‘(𝑀 + 1))))
253247, 252mpd 15 . . 3 (𝜑 → (𝑈𝑀) ≠ (𝑈‘(𝑀 + 1)))
254240anbi1d 740 . . . . 5 (𝑛 = (𝑈𝑀) → ((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ↔ (((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚))))
255 neeq1 2852 . . . . 5 (𝑛 = (𝑈𝑀) → (𝑛𝑚 ↔ (𝑈𝑀) ≠ 𝑚))
256254, 255anbi12d 746 . . . 4 (𝑛 = (𝑈𝑀) → (((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚) ↔ ((((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ (𝑈𝑀) ≠ 𝑚)))
257 fveq2 6158 . . . . . . 7 (𝑚 = (𝑈‘(𝑀 + 1)) → ((𝐹‘(𝑀 − 1))‘𝑚) = ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))))
258 fveq2 6158 . . . . . . 7 (𝑚 = (𝑈‘(𝑀 + 1)) → ((𝐹𝑀)‘𝑚) = ((𝐹𝑀)‘(𝑈‘(𝑀 + 1))))
259257, 258neeq12d 2851 . . . . . 6 (𝑚 = (𝑈‘(𝑀 + 1)) → (((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚) ↔ ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))) ≠ ((𝐹𝑀)‘(𝑈‘(𝑀 + 1)))))
260259anbi2d 739 . . . . 5 (𝑚 = (𝑈‘(𝑀 + 1)) → ((((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ↔ (((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))) ≠ ((𝐹𝑀)‘(𝑈‘(𝑀 + 1))))))
261 neeq2 2853 . . . . 5 (𝑚 = (𝑈‘(𝑀 + 1)) → ((𝑈𝑀) ≠ 𝑚 ↔ (𝑈𝑀) ≠ (𝑈‘(𝑀 + 1))))
262260, 261anbi12d 746 . . . 4 (𝑚 = (𝑈‘(𝑀 + 1)) → (((((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ (𝑈𝑀) ≠ 𝑚) ↔ ((((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))) ≠ ((𝐹𝑀)‘(𝑈‘(𝑀 + 1)))) ∧ (𝑈𝑀) ≠ (𝑈‘(𝑀 + 1)))))
263256, 262rspc2ev 3313 . . 3 (((𝑈𝑀) ∈ (1...𝑁) ∧ (𝑈‘(𝑀 + 1)) ∈ (1...𝑁) ∧ ((((𝐹‘(𝑀 − 1))‘(𝑈𝑀)) ≠ ((𝐹𝑀)‘(𝑈𝑀)) ∧ ((𝐹‘(𝑀 − 1))‘(𝑈‘(𝑀 + 1))) ≠ ((𝐹𝑀)‘(𝑈‘(𝑀 + 1)))) ∧ (𝑈𝑀) ≠ (𝑈‘(𝑀 + 1)))) → ∃𝑛 ∈ (1...𝑁)∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚))
26418, 23, 245, 253, 263syl112anc 1327 . 2 (𝜑 → ∃𝑛 ∈ (1...𝑁)∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚))
265 dfrex2 2992 . . 3 (∃𝑛 ∈ (1...𝑁)∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚) ↔ ¬ ∀𝑛 ∈ (1...𝑁) ¬ ∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚))
266 fveq2 6158 . . . . . 6 (𝑛 = 𝑚 → ((𝐹‘(𝑀 − 1))‘𝑛) = ((𝐹‘(𝑀 − 1))‘𝑚))
267 fveq2 6158 . . . . . 6 (𝑛 = 𝑚 → ((𝐹𝑀)‘𝑛) = ((𝐹𝑀)‘𝑚))
268266, 267neeq12d 2851 . . . . 5 (𝑛 = 𝑚 → (((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ↔ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)))
269268rmo4 3386 . . . 4 (∃*𝑛 ∈ (1...𝑁)((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ↔ ∀𝑛 ∈ (1...𝑁)∀𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚))
270 dfral2 2990 . . . . . 6 (∀𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚) ↔ ¬ ∃𝑚 ∈ (1...𝑁) ¬ ((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚))
271 df-ne 2791 . . . . . . . . 9 (𝑛𝑚 ↔ ¬ 𝑛 = 𝑚)
272271anbi2i 729 . . . . . . . 8 (((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚) ↔ ((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ ¬ 𝑛 = 𝑚))
273 annim 441 . . . . . . . 8 (((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ ¬ 𝑛 = 𝑚) ↔ ¬ ((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚))
274272, 273bitri 264 . . . . . . 7 (((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚) ↔ ¬ ((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚))
275274rexbii 3036 . . . . . 6 (∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚) ↔ ∃𝑚 ∈ (1...𝑁) ¬ ((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚))
276270, 275xchbinxr 325 . . . . 5 (∀𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚) ↔ ¬ ∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚))
277276ralbii 2976 . . . 4 (∀𝑛 ∈ (1...𝑁)∀𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) → 𝑛 = 𝑚) ↔ ∀𝑛 ∈ (1...𝑁) ¬ ∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚))
278269, 277bitri 264 . . 3 (∃*𝑛 ∈ (1...𝑁)((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ↔ ∀𝑛 ∈ (1...𝑁) ¬ ∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚))
279265, 278xchbinxr 325 . 2 (∃𝑛 ∈ (1...𝑁)∃𝑚 ∈ (1...𝑁)((((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛) ∧ ((𝐹‘(𝑀 − 1))‘𝑚) ≠ ((𝐹𝑀)‘𝑚)) ∧ 𝑛𝑚) ↔ ¬ ∃*𝑛 ∈ (1...𝑁)((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛))
280264, 279sylib 208 1 (𝜑 → ¬ ∃*𝑛 ∈ (1...𝑁)((𝐹‘(𝑀 − 1))‘𝑛) ≠ ((𝐹𝑀)‘𝑛))
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 196  wa 384   = wceq 1480  wcel 1987  wne 2790  wral 2908  wrex 2909  ∃*wrmo 2911  Vcvv 3190  csb 3519  cun 3558  cin 3559  wss 3560  c0 3897  ifcif 4064  {csn 4155  {cpr 4157   class class class wbr 4623  cmpt 4683   × cxp 5082  ccnv 5083  ran crn 5085  cima 5087  Fun wfun 5851   Fn wfn 5852  wf 5853  1-1wf1 5854  ontowfo 5855  1-1-ontowf1o 5856  cfv 5857  (class class class)co 6615  𝑓 cof 6860  cc 9894  cr 9895  0cc0 9896  1c1 9897   + caddc 9899   < clt 10034  cmin 10226  cn 10980  cz 11337  cuz 11647  ...cfz 12284
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1719  ax-4 1734  ax-5 1836  ax-6 1885  ax-7 1932  ax-8 1989  ax-9 1996  ax-10 2016  ax-11 2031  ax-12 2044  ax-13 2245  ax-ext 2601  ax-rep 4741  ax-sep 4751  ax-nul 4759  ax-pow 4813  ax-pr 4877  ax-un 6914  ax-cnex 9952  ax-resscn 9953  ax-1cn 9954  ax-icn 9955  ax-addcl 9956  ax-addrcl 9957  ax-mulcl 9958  ax-mulrcl 9959  ax-mulcom 9960  ax-addass 9961  ax-mulass 9962  ax-distr 9963  ax-i2m1 9964  ax-1ne0 9965  ax-1rid 9966  ax-rnegex 9967  ax-rrecex 9968  ax-cnre 9969  ax-pre-lttri 9970  ax-pre-lttrn 9971  ax-pre-ltadd 9972  ax-pre-mulgt0 9973
This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3or 1037  df-3an 1038  df-tru 1483  df-ex 1702  df-nf 1707  df-sb 1878  df-eu 2473  df-mo 2474  df-clab 2608  df-cleq 2614  df-clel 2617  df-nfc 2750  df-ne 2791  df-nel 2894  df-ral 2913  df-rex 2914  df-reu 2915  df-rmo 2916  df-rab 2917  df-v 3192  df-sbc 3423  df-csb 3520  df-dif 3563  df-un 3565  df-in 3567  df-ss 3574  df-pss 3576  df-nul 3898  df-if 4065  df-pw 4138  df-sn 4156  df-pr 4158  df-tp 4160  df-op 4162  df-uni 4410  df-iun 4494  df-br 4624  df-opab 4684  df-mpt 4685  df-tr 4723  df-eprel 4995  df-id 4999  df-po 5005  df-so 5006  df-fr 5043  df-we 5045  df-xp 5090  df-rel 5091  df-cnv 5092  df-co 5093  df-dm 5094  df-rn 5095  df-res 5096  df-ima 5097  df-pred 5649  df-ord 5695  df-on 5696  df-lim 5697  df-suc 5698  df-iota 5820  df-fun 5859  df-fn 5860  df-f 5861  df-f1 5862  df-fo 5863  df-f1o 5864  df-fv 5865  df-riota 6576  df-ov 6618  df-oprab 6619  df-mpt2 6620  df-of 6862  df-om 7028  df-1st 7128  df-2nd 7129  df-wrecs 7367  df-recs 7428  df-rdg 7466  df-er 7702  df-en 7916  df-dom 7917  df-sdom 7918  df-pnf 10036  df-mnf 10037  df-xr 10038  df-ltxr 10039  df-le 10040  df-sub 10228  df-neg 10229  df-nn 10981  df-n0 11253  df-z 11338  df-uz 11648  df-fz 12285
This theorem is referenced by:  poimirlem8  33088  poimirlem18  33098  poimirlem21  33101  poimirlem22  33102
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