| Step | Hyp | Ref | Expression | 
|---|
| 1 |  | sticksstones12.1 | . . 3
⊢ (𝜑 → 𝑁 ∈
ℕ0) | 
| 2 |  | sticksstones12.2 | . . . 4
⊢ (𝜑 → 𝐾 ∈ ℕ) | 
| 3 | 2 | nnnn0d 12587 | . . 3
⊢ (𝜑 → 𝐾 ∈
ℕ0) | 
| 4 |  | sticksstones12.3 | . . 3
⊢ 𝐹 = (𝑎 ∈ 𝐴 ↦ (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙)))) | 
| 5 |  | sticksstones12.5 | . . 3
⊢ 𝐴 = {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)} | 
| 6 |  | sticksstones12.6 | . . 3
⊢ 𝐵 = {𝑓 ∣ (𝑓:(1...𝐾)⟶(1...(𝑁 + 𝐾)) ∧ ∀𝑥 ∈ (1...𝐾)∀𝑦 ∈ (1...𝐾)(𝑥 < 𝑦 → (𝑓‘𝑥) < (𝑓‘𝑦)))} | 
| 7 | 1, 3, 4, 5, 6 | sticksstones8 42154 | . 2
⊢ (𝜑 → 𝐹:𝐴⟶𝐵) | 
| 8 |  | sticksstones12.4 | . . 3
⊢ 𝐺 = (𝑏 ∈ 𝐵 ↦ if(𝐾 = 0, {〈1, 𝑁〉}, (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) −
1)))))) | 
| 9 | 1, 2, 8, 5, 6 | sticksstones10 42156 | . 2
⊢ (𝜑 → 𝐺:𝐵⟶𝐴) | 
| 10 | 8 | a1i 11 | . . . . . . 7
⊢ (𝜑 → 𝐺 = (𝑏 ∈ 𝐵 ↦ if(𝐾 = 0, {〈1, 𝑁〉}, (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) −
1))))))) | 
| 11 |  | 0red 11264 | . . . . . . . . . . . . 13
⊢ (𝜑 → 0 ∈
ℝ) | 
| 12 | 2 | nngt0d 12315 | . . . . . . . . . . . . 13
⊢ (𝜑 → 0 < 𝐾) | 
| 13 | 11, 12 | ltned 11397 | . . . . . . . . . . . 12
⊢ (𝜑 → 0 ≠ 𝐾) | 
| 14 | 13 | necomd 2996 | . . . . . . . . . . 11
⊢ (𝜑 → 𝐾 ≠ 0) | 
| 15 | 14 | neneqd 2945 | . . . . . . . . . 10
⊢ (𝜑 → ¬ 𝐾 = 0) | 
| 16 | 15 | iffalsed 4536 | . . . . . . . . 9
⊢ (𝜑 → if(𝐾 = 0, {〈1, 𝑁〉}, (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1))))) = (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1))))) | 
| 17 | 16 | adantr 480 | . . . . . . . 8
⊢ ((𝜑 ∧ 𝑏 ∈ 𝐵) → if(𝐾 = 0, {〈1, 𝑁〉}, (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1))))) = (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1))))) | 
| 18 | 17 | mpteq2dva 5242 | . . . . . . 7
⊢ (𝜑 → (𝑏 ∈ 𝐵 ↦ if(𝐾 = 0, {〈1, 𝑁〉}, (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1)))))) = (𝑏 ∈ 𝐵 ↦ (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) −
1)))))) | 
| 19 | 10, 18 | eqtrd 2777 | . . . . . 6
⊢ (𝜑 → 𝐺 = (𝑏 ∈ 𝐵 ↦ (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) −
1)))))) | 
| 20 | 19 | adantr 480 | . . . . 5
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝐺 = (𝑏 ∈ 𝐵 ↦ (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) −
1)))))) | 
| 21 |  | fveq1 6905 | . . . . . . . . . 10
⊢ (𝑏 = (𝐹‘𝑐) → (𝑏‘𝐾) = ((𝐹‘𝑐)‘𝐾)) | 
| 22 | 21 | oveq2d 7447 | . . . . . . . . 9
⊢ (𝑏 = (𝐹‘𝑐) → ((𝑁 + 𝐾) − (𝑏‘𝐾)) = ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾))) | 
| 23 |  | fveq1 6905 | . . . . . . . . . . 11
⊢ (𝑏 = (𝐹‘𝑐) → (𝑏‘1) = ((𝐹‘𝑐)‘1)) | 
| 24 | 23 | oveq1d 7446 | . . . . . . . . . 10
⊢ (𝑏 = (𝐹‘𝑐) → ((𝑏‘1) − 1) = (((𝐹‘𝑐)‘1) − 1)) | 
| 25 |  | fveq1 6905 | . . . . . . . . . . . 12
⊢ (𝑏 = (𝐹‘𝑐) → (𝑏‘𝑘) = ((𝐹‘𝑐)‘𝑘)) | 
| 26 |  | fveq1 6905 | . . . . . . . . . . . 12
⊢ (𝑏 = (𝐹‘𝑐) → (𝑏‘(𝑘 − 1)) = ((𝐹‘𝑐)‘(𝑘 − 1))) | 
| 27 | 25, 26 | oveq12d 7449 | . . . . . . . . . . 11
⊢ (𝑏 = (𝐹‘𝑐) → ((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) = (((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1)))) | 
| 28 | 27 | oveq1d 7446 | . . . . . . . . . 10
⊢ (𝑏 = (𝐹‘𝑐) → (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1) = ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1)) | 
| 29 | 24, 28 | ifeq12d 4547 | . . . . . . . . 9
⊢ (𝑏 = (𝐹‘𝑐) → if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1)) = if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1))) | 
| 30 | 22, 29 | ifeq12d 4547 | . . . . . . . 8
⊢ (𝑏 = (𝐹‘𝑐) → if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1))) = if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1)))) | 
| 31 | 30 | adantr 480 | . . . . . . 7
⊢ ((𝑏 = (𝐹‘𝑐) ∧ 𝑘 ∈ (1...(𝐾 + 1))) → if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1))) = if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1)))) | 
| 32 | 31 | mpteq2dva 5242 | . . . . . 6
⊢ (𝑏 = (𝐹‘𝑐) → (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1)))) = (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1))))) | 
| 33 | 32 | adantl 481 | . . . . 5
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑏 = (𝐹‘𝑐)) → (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − (𝑏‘𝐾)), if(𝑘 = 1, ((𝑏‘1) − 1), (((𝑏‘𝑘) − (𝑏‘(𝑘 − 1))) − 1)))) = (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1))))) | 
| 34 | 7 | ffvelcdmda 7104 | . . . . 5
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐹‘𝑐) ∈ 𝐵) | 
| 35 |  | fzfid 14014 | . . . . . 6
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (1...(𝐾 + 1)) ∈ Fin) | 
| 36 | 35 | mptexd 7244 | . . . . 5
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1)))) ∈
V) | 
| 37 | 20, 33, 34, 36 | fvmptd 7023 | . . . 4
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐺‘(𝐹‘𝑐)) = (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1))))) | 
| 38 | 4 | a1i 11 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝐹 = (𝑎 ∈ 𝐴 ↦ (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙))))) | 
| 39 |  | simpllr 776 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) ∧ 𝑙 ∈ (1...𝑗)) → 𝑎 = 𝑐) | 
| 40 | 39 | fveq1d 6908 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) ∧ 𝑙 ∈ (1...𝑗)) → (𝑎‘𝑙) = (𝑐‘𝑙)) | 
| 41 | 40 | sumeq2dv 15738 | . . . . . . . . . . . . . . . . 17
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) → Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙) = Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)) | 
| 42 | 41 | oveq2d 7447 | . . . . . . . . . . . . . . . 16
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) → (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙)) = (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙))) | 
| 43 | 42 | mpteq2dva 5242 | . . . . . . . . . . . . . . 15
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑎 = 𝑐) → (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙))) = (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))) | 
| 44 |  | simpr 484 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝑐 ∈ 𝐴) | 
| 45 |  | fzfid 14014 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (1...𝐾) ∈ Fin) | 
| 46 | 45 | mptexd 7244 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙))) ∈ V) | 
| 47 | 38, 43, 44, 46 | fvmptd 7023 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐹‘𝑐) = (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))) | 
| 48 |  | simpr 484 | . . . . . . . . . . . . . . 15
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 𝐾) → 𝑗 = 𝐾) | 
| 49 | 48 | oveq2d 7447 | . . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 𝐾) → (1...𝑗) = (1...𝐾)) | 
| 50 | 49 | sumeq1d 15736 | . . . . . . . . . . . . . . 15
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 𝐾) → Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙) = Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙)) | 
| 51 | 48, 50 | oveq12d 7449 | . . . . . . . . . . . . . 14
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 𝐾) → (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)) = (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙))) | 
| 52 |  | 1zzd 12648 | . . . . . . . . . . . . . . . 16
⊢ (𝜑 → 1 ∈
ℤ) | 
| 53 | 3 | nn0zd 12639 | . . . . . . . . . . . . . . . 16
⊢ (𝜑 → 𝐾 ∈ ℤ) | 
| 54 | 2 | nnge1d 12314 | . . . . . . . . . . . . . . . 16
⊢ (𝜑 → 1 ≤ 𝐾) | 
| 55 | 2 | nnred 12281 | . . . . . . . . . . . . . . . . 17
⊢ (𝜑 → 𝐾 ∈ ℝ) | 
| 56 | 55 | leidd 11829 | . . . . . . . . . . . . . . . 16
⊢ (𝜑 → 𝐾 ≤ 𝐾) | 
| 57 | 52, 53, 53, 54, 56 | elfzd 13555 | . . . . . . . . . . . . . . 15
⊢ (𝜑 → 𝐾 ∈ (1...𝐾)) | 
| 58 | 57 | adantr 480 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝐾 ∈ (1...𝐾)) | 
| 59 |  | ovexd 7466 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙)) ∈ V) | 
| 60 | 47, 51, 58, 59 | fvmptd 7023 | . . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝐹‘𝑐)‘𝐾) = (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙))) | 
| 61 | 60 | oveq2d 7447 | . . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)) = ((𝑁 + 𝐾) − (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙)))) | 
| 62 | 1 | nn0cnd 12589 | . . . . . . . . . . . . . . . 16
⊢ (𝜑 → 𝑁 ∈ ℂ) | 
| 63 | 62 | adantr 480 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝑁 ∈ ℂ) | 
| 64 | 55 | recnd 11289 | . . . . . . . . . . . . . . . 16
⊢ (𝜑 → 𝐾 ∈ ℂ) | 
| 65 | 64 | adantr 480 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝐾 ∈ ℂ) | 
| 66 | 63, 65 | addcomd 11463 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑁 + 𝐾) = (𝐾 + 𝑁)) | 
| 67 | 66 | oveq1d 7446 | . . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝑁 + 𝐾) − (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙))) = ((𝐾 + 𝑁) − (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙)))) | 
| 68 |  | 1zzd 12648 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 1 ∈ ℤ) | 
| 69 | 53 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝐾 ∈ ℤ) | 
| 70 | 69 | peano2zd 12725 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → (𝐾 + 1) ∈ ℤ) | 
| 71 |  | elfzelz 13564 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝑙 ∈ (1...𝐾) → 𝑙 ∈ ℤ) | 
| 72 | 71 | adantl 481 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝑙 ∈ ℤ) | 
| 73 |  | elfzle1 13567 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝑙 ∈ (1...𝐾) → 1 ≤ 𝑙) | 
| 74 | 73 | adantl 481 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 1 ≤ 𝑙) | 
| 75 | 72 | zred 12722 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝑙 ∈ ℝ) | 
| 76 | 55 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝐾 ∈ ℝ) | 
| 77 | 70 | zred 12722 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → (𝐾 + 1) ∈ ℝ) | 
| 78 |  | elfzle2 13568 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (𝑙 ∈ (1...𝐾) → 𝑙 ≤ 𝐾) | 
| 79 | 78 | adantl 481 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝑙 ≤ 𝐾) | 
| 80 | 76 | lep1d 12199 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝐾 ≤ (𝐾 + 1)) | 
| 81 | 75, 76, 77, 79, 80 | letrd 11418 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝑙 ≤ (𝐾 + 1)) | 
| 82 | 68, 70, 72, 74, 81 | elfzd 13555 | . . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝑙 ∈ (1...(𝐾 + 1))) | 
| 83 | 5 | eleq2i 2833 | . . . . . . . . . . . . . . . . . . . . . . . 24
⊢ (𝑐 ∈ 𝐴 ↔ 𝑐 ∈ {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)}) | 
| 84 | 83 | biimpi 216 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (𝑐 ∈ 𝐴 → 𝑐 ∈ {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)}) | 
| 85 | 84 | adantl 481 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝑐 ∈ {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)}) | 
| 86 |  | vex 3484 | . . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ 𝑐 ∈ V | 
| 87 |  | feq1 6716 | . . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ (𝑔 = 𝑐 → (𝑔:(1...(𝐾 + 1))⟶ℕ0 ↔
𝑐:(1...(𝐾 +
1))⟶ℕ0)) | 
| 88 |  | simpl 482 | . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
⊢ ((𝑔 = 𝑐 ∧ 𝑖 ∈ (1...(𝐾 + 1))) → 𝑔 = 𝑐) | 
| 89 | 88 | fveq1d 6908 | . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
⊢ ((𝑔 = 𝑐 ∧ 𝑖 ∈ (1...(𝐾 + 1))) → (𝑔‘𝑖) = (𝑐‘𝑖)) | 
| 90 | 89 | sumeq2dv 15738 | . . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ (𝑔 = 𝑐 → Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖)) | 
| 91 | 90 | eqeq1d 2739 | . . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ (𝑔 = 𝑐 → (Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁 ↔ Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) = 𝑁)) | 
| 92 | 87, 91 | anbi12d 632 | . . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (𝑔 = 𝑐 → ((𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁) ↔ (𝑐:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) = 𝑁))) | 
| 93 | 86, 92 | elab 3679 | . . . . . . . . . . . . . . . . . . . . . . . 24
⊢ (𝑐 ∈ {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)} ↔ (𝑐:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) = 𝑁)) | 
| 94 | 93 | a1i 11 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑐 ∈ {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)} ↔ (𝑐:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) = 𝑁))) | 
| 95 | 94 | biimpd 229 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑐 ∈ {𝑔 ∣ (𝑔:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑔‘𝑖) = 𝑁)} → (𝑐:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) = 𝑁))) | 
| 96 | 85, 95 | mpd 15 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑐:(1...(𝐾 + 1))⟶ℕ0 ∧
Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) = 𝑁)) | 
| 97 | 96 | simpld 494 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝑐:(1...(𝐾 +
1))⟶ℕ0) | 
| 98 | 97 | adantr 480 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → 𝑐:(1...(𝐾 +
1))⟶ℕ0) | 
| 99 | 98 | ffvelcdmda 7104 | . . . . . . . . . . . . . . . . . 18
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) ∧ 𝑙 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑙) ∈
ℕ0) | 
| 100 | 82, 99 | mpdan 687 | . . . . . . . . . . . . . . . . 17
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...𝐾)) → (𝑐‘𝑙) ∈
ℕ0) | 
| 101 | 45, 100 | fsumnn0cl 15772 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙) ∈
ℕ0) | 
| 102 | 101 | nn0cnd 12589 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙) ∈ ℂ) | 
| 103 | 65, 63, 102 | pnpcand 11657 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝐾 + 𝑁) − (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙))) = (𝑁 − Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙))) | 
| 104 |  | eqid 2737 | . . . . . . . . . . . . . . . . . . . . . . . 24
⊢ 1 =
1 | 
| 105 |  | 1p0e1 12390 | . . . . . . . . . . . . . . . . . . . . . . . 24
⊢ (1 + 0) =
1 | 
| 106 | 104, 105 | eqtr4i 2768 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ 1 = (1 +
0) | 
| 107 | 106 | a1i 11 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (𝜑 → 1 = (1 +
0)) | 
| 108 |  | 1red 11262 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (𝜑 → 1 ∈
ℝ) | 
| 109 |  | 0le1 11786 | . . . . . . . . . . . . . . . . . . . . . . . 24
⊢ 0 ≤
1 | 
| 110 | 109 | a1i 11 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (𝜑 → 0 ≤ 1) | 
| 111 | 108, 11, 55, 108, 54, 110 | le2addd 11882 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (𝜑 → (1 + 0) ≤ (𝐾 + 1)) | 
| 112 | 107, 111 | eqbrtrd 5165 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (𝜑 → 1 ≤ (𝐾 + 1)) | 
| 113 | 53 | peano2zd 12725 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (𝜑 → (𝐾 + 1) ∈ ℤ) | 
| 114 |  | eluz 12892 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ ((1
∈ ℤ ∧ (𝐾 +
1) ∈ ℤ) → ((𝐾 + 1) ∈
(ℤ≥‘1) ↔ 1 ≤ (𝐾 + 1))) | 
| 115 | 52, 113, 114 | syl2anc 584 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (𝜑 → ((𝐾 + 1) ∈
(ℤ≥‘1) ↔ 1 ≤ (𝐾 + 1))) | 
| 116 | 112, 115 | mpbird 257 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝜑 → (𝐾 + 1) ∈
(ℤ≥‘1)) | 
| 117 | 116 | adantr 480 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐾 + 1) ∈
(ℤ≥‘1)) | 
| 118 | 97 | ffvelcdmda 7104 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑙) ∈
ℕ0) | 
| 119 | 118 | nn0cnd 12589 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑙) ∈ ℂ) | 
| 120 |  | fveq2 6906 | . . . . . . . . . . . . . . . . . . 19
⊢ (𝑙 = (𝐾 + 1) → (𝑐‘𝑙) = (𝑐‘(𝐾 + 1))) | 
| 121 | 117, 119,
120 | fsumm1 15787 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...(𝐾 + 1))(𝑐‘𝑙) = (Σ𝑙 ∈ (1...((𝐾 + 1) − 1))(𝑐‘𝑙) + (𝑐‘(𝐾 + 1)))) | 
| 122 |  | 1cnd 11256 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ∈ ℂ) | 
| 123 | 65, 122 | pncand 11621 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝐾 + 1) − 1) = 𝐾) | 
| 124 | 123 | oveq2d 7447 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (1...((𝐾 + 1) − 1)) = (1...𝐾)) | 
| 125 | 124 | sumeq1d 15736 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...((𝐾 + 1) − 1))(𝑐‘𝑙) = Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙)) | 
| 126 | 125 | oveq1d 7446 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (Σ𝑙 ∈ (1...((𝐾 + 1) − 1))(𝑐‘𝑙) + (𝑐‘(𝐾 + 1))) = (Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙) + (𝑐‘(𝐾 + 1)))) | 
| 127 | 121, 126 | eqtrd 2777 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...(𝐾 + 1))(𝑐‘𝑙) = (Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙) + (𝑐‘(𝐾 + 1)))) | 
| 128 | 127 | eqcomd 2743 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙) + (𝑐‘(𝐾 + 1))) = Σ𝑙 ∈ (1...(𝐾 + 1))(𝑐‘𝑙)) | 
| 129 |  | fveq2 6906 | . . . . . . . . . . . . . . . . . . 19
⊢ (𝑙 = 𝑖 → (𝑐‘𝑙) = (𝑐‘𝑖)) | 
| 130 |  | nfcv 2905 | . . . . . . . . . . . . . . . . . . 19
⊢
Ⅎ𝑖(𝑐‘𝑙) | 
| 131 |  | nfcv 2905 | . . . . . . . . . . . . . . . . . . 19
⊢
Ⅎ𝑙(𝑐‘𝑖) | 
| 132 | 129, 130,
131 | cbvsum 15731 | . . . . . . . . . . . . . . . . . 18
⊢
Σ𝑙 ∈
(1...(𝐾 + 1))(𝑐‘𝑙) = Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) | 
| 133 | 132 | a1i 11 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...(𝐾 + 1))(𝑐‘𝑙) = Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖)) | 
| 134 | 96 | simprd 495 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑖 ∈ (1...(𝐾 + 1))(𝑐‘𝑖) = 𝑁) | 
| 135 | 133, 134 | eqtrd 2777 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...(𝐾 + 1))(𝑐‘𝑙) = 𝑁) | 
| 136 | 128, 135 | eqtrd 2777 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙) + (𝑐‘(𝐾 + 1))) = 𝑁) | 
| 137 |  | 1zzd 12648 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ∈ ℤ) | 
| 138 | 53 | adantr 480 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝐾 ∈ ℤ) | 
| 139 | 138 | peano2zd 12725 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐾 + 1) ∈ ℤ) | 
| 140 |  | 1e0p1 12775 | . . . . . . . . . . . . . . . . . . . . 21
⊢ 1 = (0 +
1) | 
| 141 | 140 | a1i 11 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 = (0 + 1)) | 
| 142 |  | 0red 11264 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 0 ∈ ℝ) | 
| 143 | 55 | adantr 480 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝐾 ∈ ℝ) | 
| 144 |  | 1red 11262 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ∈ ℝ) | 
| 145 | 11, 55, 12 | ltled 11409 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (𝜑 → 0 ≤ 𝐾) | 
| 146 | 145 | adantr 480 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 0 ≤ 𝐾) | 
| 147 | 142, 143,
144, 146 | leadd1dd 11877 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (0 + 1) ≤ (𝐾 + 1)) | 
| 148 | 141, 147 | eqbrtrd 5165 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ≤ (𝐾 + 1)) | 
| 149 | 55, 55, 108, 56 | leadd1dd 11877 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝜑 → (𝐾 + 1) ≤ (𝐾 + 1)) | 
| 150 | 149 | adantr 480 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐾 + 1) ≤ (𝐾 + 1)) | 
| 151 | 137, 139,
139, 148, 150 | elfzd 13555 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐾 + 1) ∈ (1...(𝐾 + 1))) | 
| 152 | 97, 151 | ffvelcdmd 7105 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑐‘(𝐾 + 1)) ∈
ℕ0) | 
| 153 | 152 | nn0cnd 12589 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑐‘(𝐾 + 1)) ∈ ℂ) | 
| 154 | 63, 102, 153 | subaddd 11638 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝑁 − Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙)) = (𝑐‘(𝐾 + 1)) ↔ (Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙) + (𝑐‘(𝐾 + 1))) = 𝑁)) | 
| 155 | 136, 154 | mpbird 257 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑁 − Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙)) = (𝑐‘(𝐾 + 1))) | 
| 156 | 103, 155 | eqtrd 2777 | . . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝐾 + 𝑁) − (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙))) = (𝑐‘(𝐾 + 1))) | 
| 157 | 67, 156 | eqtrd 2777 | . . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝑁 + 𝐾) − (𝐾 + Σ𝑙 ∈ (1...𝐾)(𝑐‘𝑙))) = (𝑐‘(𝐾 + 1))) | 
| 158 | 61, 157 | eqtrd 2777 | . . . . . . . . . . 11
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)) = (𝑐‘(𝐾 + 1))) | 
| 159 | 158 | 3adant3 1133 | . . . . . . . . . 10
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)) = (𝑐‘(𝐾 + 1))) | 
| 160 | 159 | adantr 480 | . . . . . . . . 9
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ 𝑘 = (𝐾 + 1)) → ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)) = (𝑐‘(𝐾 + 1))) | 
| 161 |  | simpr 484 | . . . . . . . . . . 11
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ 𝑘 = (𝐾 + 1)) → 𝑘 = (𝐾 + 1)) | 
| 162 | 161 | fveq2d 6910 | . . . . . . . . . 10
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ 𝑘 = (𝐾 + 1)) → (𝑐‘𝑘) = (𝑐‘(𝐾 + 1))) | 
| 163 | 162 | eqcomd 2743 | . . . . . . . . 9
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ 𝑘 = (𝐾 + 1)) → (𝑐‘(𝐾 + 1)) = (𝑐‘𝑘)) | 
| 164 | 160, 163 | eqtrd 2777 | . . . . . . . 8
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ 𝑘 = (𝐾 + 1)) → ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)) = (𝑐‘𝑘)) | 
| 165 | 47 | fveq1d 6908 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝐹‘𝑐)‘1) = ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘1)) | 
| 166 | 165 | oveq1d 7446 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (((𝐹‘𝑐)‘1) − 1) = (((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘1) − 1)) | 
| 167 |  | eqidd 2738 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙))) = (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))) | 
| 168 |  | simpr 484 | . . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 1) → 𝑗 = 1) | 
| 169 | 168 | oveq2d 7447 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 1) → (1...𝑗) = (1...1)) | 
| 170 | 169 | sumeq1d 15736 | . . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 1) → Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙) = Σ𝑙 ∈ (1...1)(𝑐‘𝑙)) | 
| 171 | 168, 170 | oveq12d 7449 | . . . . . . . . . . . . . . . . 17
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑗 = 1) → (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)) = (1 + Σ𝑙 ∈ (1...1)(𝑐‘𝑙))) | 
| 172 | 144 | leidd 11829 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ≤ 1) | 
| 173 | 54 | adantr 480 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ≤ 𝐾) | 
| 174 | 137, 138,
137, 172, 173 | elfzd 13555 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ∈ (1...𝐾)) | 
| 175 |  | ovexd 7466 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (1 + Σ𝑙 ∈ (1...1)(𝑐‘𝑙)) ∈ V) | 
| 176 | 167, 171,
174, 175 | fvmptd 7023 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘1) = (1 + Σ𝑙 ∈ (1...1)(𝑐‘𝑙))) | 
| 177 | 176 | oveq1d 7446 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘1) − 1) = ((1 + Σ𝑙 ∈ (1...1)(𝑐‘𝑙)) − 1)) | 
| 178 |  | fzfid 14014 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (1...1) ∈
Fin) | 
| 179 |  | 1zzd 12648 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 1 ∈
ℤ) | 
| 180 | 138 | adantr 480 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 𝐾 ∈ ℤ) | 
| 181 | 180 | peano2zd 12725 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → (𝐾 + 1) ∈ ℤ) | 
| 182 |  | elfzelz 13564 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (𝑙 ∈ (1...1) → 𝑙 ∈
ℤ) | 
| 183 | 182 | adantl 481 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 𝑙 ∈ ℤ) | 
| 184 |  | elfzle1 13567 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (𝑙 ∈ (1...1) → 1 ≤
𝑙) | 
| 185 | 184 | adantl 481 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 1 ≤ 𝑙) | 
| 186 | 183 | zred 12722 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 𝑙 ∈ ℝ) | 
| 187 |  | 0red 11264 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 0 ∈
ℝ) | 
| 188 |  | 1red 11262 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 1 ∈
ℝ) | 
| 189 | 187, 188 | readdcld 11290 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → (0 + 1) ∈
ℝ) | 
| 190 | 181 | zred 12722 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → (𝐾 + 1) ∈ ℝ) | 
| 191 |  | elfzle2 13568 | . . . . . . . . . . . . . . . . . . . . . . . 24
⊢ (𝑙 ∈ (1...1) → 𝑙 ≤ 1) | 
| 192 | 191 | adantl 481 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 𝑙 ≤ 1) | 
| 193 | 140 | a1i 11 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 1 = (0 +
1)) | 
| 194 | 192, 193 | breqtrd 5169 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 𝑙 ≤ (0 + 1)) | 
| 195 | 147 | adantr 480 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → (0 + 1) ≤ (𝐾 + 1)) | 
| 196 | 186, 189,
190, 194, 195 | letrd 11418 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 𝑙 ≤ (𝐾 + 1)) | 
| 197 | 179, 181,
183, 185, 196 | elfzd 13555 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → 𝑙 ∈ (1...(𝐾 + 1))) | 
| 198 | 118 | adantlr 715 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) ∧ 𝑙 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑙) ∈
ℕ0) | 
| 199 | 197, 198 | mpdan 687 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑙 ∈ (1...1)) → (𝑐‘𝑙) ∈
ℕ0) | 
| 200 | 178, 199 | fsumnn0cl 15772 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...1)(𝑐‘𝑙) ∈
ℕ0) | 
| 201 | 200 | nn0cnd 12589 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...1)(𝑐‘𝑙) ∈ ℂ) | 
| 202 | 122, 201 | pncan2d 11622 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((1 + Σ𝑙 ∈ (1...1)(𝑐‘𝑙)) − 1) = Σ𝑙 ∈ (1...1)(𝑐‘𝑙)) | 
| 203 | 137, 139,
137, 172, 148 | elfzd 13555 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 1 ∈ (1...(𝐾 + 1))) | 
| 204 | 97, 203 | ffvelcdmd 7105 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑐‘1) ∈
ℕ0) | 
| 205 | 204 | nn0cnd 12589 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑐‘1) ∈ ℂ) | 
| 206 |  | fveq2 6906 | . . . . . . . . . . . . . . . . . 18
⊢ (𝑙 = 1 → (𝑐‘𝑙) = (𝑐‘1)) | 
| 207 | 206 | fsum1 15783 | . . . . . . . . . . . . . . . . 17
⊢ ((1
∈ ℤ ∧ (𝑐‘1) ∈ ℂ) → Σ𝑙 ∈ (1...1)(𝑐‘𝑙) = (𝑐‘1)) | 
| 208 | 137, 205,
207 | syl2anc 584 | . . . . . . . . . . . . . . . 16
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → Σ𝑙 ∈ (1...1)(𝑐‘𝑙) = (𝑐‘1)) | 
| 209 | 202, 208 | eqtrd 2777 | . . . . . . . . . . . . . . 15
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → ((1 + Σ𝑙 ∈ (1...1)(𝑐‘𝑙)) − 1) = (𝑐‘1)) | 
| 210 | 177, 209 | eqtrd 2777 | . . . . . . . . . . . . . 14
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘1) − 1) = (𝑐‘1)) | 
| 211 | 166, 210 | eqtrd 2777 | . . . . . . . . . . . . 13
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (((𝐹‘𝑐)‘1) − 1) = (𝑐‘1)) | 
| 212 | 211 | 3adant3 1133 | . . . . . . . . . . . 12
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → (((𝐹‘𝑐)‘1) − 1) = (𝑐‘1)) | 
| 213 | 212 | adantr 480 | . . . . . . . . . . 11
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (((𝐹‘𝑐)‘1) − 1) = (𝑐‘1)) | 
| 214 | 213 | adantr 480 | . . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ 𝑘 = 1) → (((𝐹‘𝑐)‘1) − 1) = (𝑐‘1)) | 
| 215 |  | simpr 484 | . . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ 𝑘 = 1) → 𝑘 = 1) | 
| 216 | 215 | fveq2d 6910 | . . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ 𝑘 = 1) → (𝑐‘𝑘) = (𝑐‘1)) | 
| 217 | 216 | eqcomd 2743 | . . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ 𝑘 = 1) → (𝑐‘1) = (𝑐‘𝑘)) | 
| 218 | 214, 217 | eqtrd 2777 | . . . . . . . . 9
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ 𝑘 = 1) → (((𝐹‘𝑐)‘1) − 1) = (𝑐‘𝑘)) | 
| 219 | 4 | a1i 11 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝐹 = (𝑎 ∈ 𝐴 ↦ (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙))))) | 
| 220 |  | simpllr 776 | . . . . . . . . . . . . . . . . . 18
⊢
(((((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) ∧ 𝑙 ∈ (1...𝑗)) → 𝑎 = 𝑐) | 
| 221 | 220 | fveq1d 6908 | . . . . . . . . . . . . . . . . 17
⊢
(((((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) ∧ 𝑙 ∈ (1...𝑗)) → (𝑎‘𝑙) = (𝑐‘𝑙)) | 
| 222 | 221 | sumeq2dv 15738 | . . . . . . . . . . . . . . . 16
⊢
((((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) → Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙) = Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)) | 
| 223 | 222 | oveq2d 7447 | . . . . . . . . . . . . . . 15
⊢
((((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑎 = 𝑐) ∧ 𝑗 ∈ (1...𝐾)) → (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙)) = (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙))) | 
| 224 | 223 | mpteq2dva 5242 | . . . . . . . . . . . . . 14
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑎 = 𝑐) → (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑎‘𝑙))) = (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))) | 
| 225 |  | simpll2 1214 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑐 ∈ 𝐴) | 
| 226 |  | fzfid 14014 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (1...𝐾) ∈ Fin) | 
| 227 | 226 | mptexd 7244 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙))) ∈ V) | 
| 228 | 219, 224,
225, 227 | fvmptd 7023 | . . . . . . . . . . . . 13
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝐹‘𝑐) = (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))) | 
| 229 | 228 | fveq1d 6908 | . . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝐹‘𝑐)‘𝑘) = ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘𝑘)) | 
| 230 | 228 | fveq1d 6908 | . . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝐹‘𝑐)‘(𝑘 − 1)) = ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘(𝑘 − 1))) | 
| 231 | 229, 230 | oveq12d 7449 | . . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) = (((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘𝑘) − ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘(𝑘 − 1)))) | 
| 232 | 231 | oveq1d 7446 | . . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1) = ((((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘𝑘) − ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘(𝑘 − 1))) − 1)) | 
| 233 |  | eqidd 2738 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙))) = (𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))) | 
| 234 |  | simpr 484 | . . . . . . . . . . . . . . 15
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = 𝑘) → 𝑗 = 𝑘) | 
| 235 | 234 | oveq2d 7447 | . . . . . . . . . . . . . . . 16
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = 𝑘) → (1...𝑗) = (1...𝑘)) | 
| 236 | 235 | sumeq1d 15736 | . . . . . . . . . . . . . . 15
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = 𝑘) → Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙) = Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) | 
| 237 | 234, 236 | oveq12d 7449 | . . . . . . . . . . . . . 14
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = 𝑘) → (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)) = (𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙))) | 
| 238 |  | 1zzd 12648 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ∈
ℤ) | 
| 239 | 138 | 3adant3 1133 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 𝐾 ∈ ℤ) | 
| 240 | 239 | adantr 480 | . . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝐾 ∈ ℤ) | 
| 241 | 240 | adantr 480 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝐾 ∈ ℤ) | 
| 242 |  | elfznn 13593 | . . . . . . . . . . . . . . . . . . 19
⊢ (𝑘 ∈ (1...(𝐾 + 1)) → 𝑘 ∈ ℕ) | 
| 243 | 242 | 3ad2ant3 1136 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 𝑘 ∈ ℕ) | 
| 244 | 243 | nnzd 12640 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 𝑘 ∈ ℤ) | 
| 245 | 244 | adantr 480 | . . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 ∈ ℤ) | 
| 246 | 245 | adantr 480 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ∈ ℤ) | 
| 247 | 243 | nnge1d 12314 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 1 ≤ 𝑘) | 
| 248 | 247 | adantr 480 | . . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 1 ≤ 𝑘) | 
| 249 | 248 | adantr 480 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ≤ 𝑘) | 
| 250 |  | simpl3 1194 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 ∈ (1...(𝐾 + 1))) | 
| 251 |  | 1zzd 12648 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 1 ∈
ℤ) | 
| 252 | 240 | peano2zd 12725 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝐾 + 1) ∈ ℤ) | 
| 253 |  | elfz 13553 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ ((𝑘 ∈ ℤ ∧ 1 ∈
ℤ ∧ (𝐾 + 1)
∈ ℤ) → (𝑘
∈ (1...(𝐾 + 1)) ↔
(1 ≤ 𝑘 ∧ 𝑘 ≤ (𝐾 + 1)))) | 
| 254 | 245, 251,
252, 253 | syl3anc 1373 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝑘 ∈ (1...(𝐾 + 1)) ↔ (1 ≤ 𝑘 ∧ 𝑘 ≤ (𝐾 + 1)))) | 
| 255 | 254 | biimpd 229 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝑘 ∈ (1...(𝐾 + 1)) → (1 ≤ 𝑘 ∧ 𝑘 ≤ (𝐾 + 1)))) | 
| 256 | 250, 255 | mpd 15 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (1 ≤ 𝑘 ∧ 𝑘 ≤ (𝐾 + 1))) | 
| 257 | 256 | simprd 495 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 ≤ (𝐾 + 1)) | 
| 258 |  | neqne 2948 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (¬
𝑘 = (𝐾 + 1) → 𝑘 ≠ (𝐾 + 1)) | 
| 259 | 258 | adantl 481 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 ≠ (𝐾 + 1)) | 
| 260 | 259 | necomd 2996 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝐾 + 1) ≠ 𝑘) | 
| 261 | 257, 260 | jca 511 | . . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝑘 ≤ (𝐾 + 1) ∧ (𝐾 + 1) ≠ 𝑘)) | 
| 262 | 245 | zred 12722 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 ∈ ℝ) | 
| 263 | 252 | zred 12722 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝐾 + 1) ∈ ℝ) | 
| 264 | 262, 263 | ltlend 11406 | . . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝑘 < (𝐾 + 1) ↔ (𝑘 ≤ (𝐾 + 1) ∧ (𝐾 + 1) ≠ 𝑘))) | 
| 265 | 261, 264 | mpbird 257 | . . . . . . . . . . . . . . . . 17
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 < (𝐾 + 1)) | 
| 266 |  | zleltp1 12668 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝑘 ∈ ℤ ∧ 𝐾 ∈ ℤ) → (𝑘 ≤ 𝐾 ↔ 𝑘 < (𝐾 + 1))) | 
| 267 | 245, 240,
266 | syl2anc 584 | . . . . . . . . . . . . . . . . 17
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝑘 ≤ 𝐾 ↔ 𝑘 < (𝐾 + 1))) | 
| 268 | 265, 267 | mpbird 257 | . . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 ≤ 𝐾) | 
| 269 | 268 | adantr 480 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ≤ 𝐾) | 
| 270 | 238, 241,
246, 249, 269 | elfzd 13555 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ∈ (1...𝐾)) | 
| 271 |  | ovexd 7466 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) ∈ V) | 
| 272 | 233, 237,
270, 271 | fvmptd 7023 | . . . . . . . . . . . . 13
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘𝑘) = (𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙))) | 
| 273 |  | simpr 484 | . . . . . . . . . . . . . . 15
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = (𝑘 − 1)) → 𝑗 = (𝑘 − 1)) | 
| 274 | 273 | oveq2d 7447 | . . . . . . . . . . . . . . . 16
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = (𝑘 − 1)) → (1...𝑗) = (1...(𝑘 − 1))) | 
| 275 | 274 | sumeq1d 15736 | . . . . . . . . . . . . . . 15
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = (𝑘 − 1)) → Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙) = Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)) | 
| 276 | 273, 275 | oveq12d 7449 | . . . . . . . . . . . . . 14
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑗 = (𝑘 − 1)) → (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)) = ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) | 
| 277 |  | 1zzd 12648 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ∈
ℤ) | 
| 278 | 53 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . 19
⊢ (((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = 1) → 𝐾 ∈ ℤ) | 
| 279 | 278 | 3impa 1110 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝐾 ∈ ℤ) | 
| 280 | 242 | nnzd 12640 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (𝑘 ∈ (1...(𝐾 + 1)) → 𝑘 ∈ ℤ) | 
| 281 | 280 | adantl 481 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 𝑘 ∈ ℤ) | 
| 282 | 281 | adantr 480 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = 1) → 𝑘 ∈ ℤ) | 
| 283 | 282 | 3impa 1110 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ∈ ℤ) | 
| 284 | 283, 277 | zsubcld 12727 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ∈ ℤ) | 
| 285 |  | neqne 2948 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ (¬
𝑘 = 1 → 𝑘 ≠ 1) | 
| 286 | 285 | 3ad2ant3 1136 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ≠ 1) | 
| 287 | 108 | 3ad2ant1 1134 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ∈
ℝ) | 
| 288 | 283 | zred 12722 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ∈ ℝ) | 
| 289 |  | simp2 1138 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ∈ (1...(𝐾 + 1))) | 
| 290 |  | elfzle1 13567 | . . . . . . . . . . . . . . . . . . . . . . 23
⊢ (𝑘 ∈ (1...(𝐾 + 1)) → 1 ≤ 𝑘) | 
| 291 | 289, 290 | syl 17 | . . . . . . . . . . . . . . . . . . . . . 22
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ≤ 𝑘) | 
| 292 | 287, 288,
291 | leltned 11414 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (1 < 𝑘 ↔ 𝑘 ≠ 1)) | 
| 293 | 286, 292 | mpbird 257 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 < 𝑘) | 
| 294 | 277, 283 | zltp1led 41980 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (1 < 𝑘 ↔ (1 + 1) ≤ 𝑘)) | 
| 295 | 293, 294 | mpbid 232 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (1 + 1) ≤ 𝑘) | 
| 296 |  | leaddsub 11739 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((1
∈ ℝ ∧ 1 ∈ ℝ ∧ 𝑘 ∈ ℝ) → ((1 + 1) ≤ 𝑘 ↔ 1 ≤ (𝑘 − 1))) | 
| 297 | 287, 287,
288, 296 | syl3anc 1373 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((1 + 1) ≤ 𝑘 ↔ 1 ≤ (𝑘 − 1))) | 
| 298 | 295, 297 | mpbid 232 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ≤ (𝑘 − 1)) | 
| 299 | 284 | zred 12722 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ∈ ℝ) | 
| 300 | 55 | 3ad2ant1 1134 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝐾 ∈ ℝ) | 
| 301 |  | 1red 11262 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ∈
ℝ) | 
| 302 | 300, 301 | readdcld 11290 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝐾 + 1) ∈ ℝ) | 
| 303 | 302, 301 | resubcld 11691 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝐾 + 1) − 1) ∈
ℝ) | 
| 304 |  | elfzle2 13568 | . . . . . . . . . . . . . . . . . . . . 21
⊢ (𝑘 ∈ (1...(𝐾 + 1)) → 𝑘 ≤ (𝐾 + 1)) | 
| 305 | 304 | 3ad2ant2 1135 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ≤ (𝐾 + 1)) | 
| 306 | 288, 302,
301, 305 | lesub1dd 11879 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ≤ ((𝐾 + 1) − 1)) | 
| 307 | 64 | 3ad2ant1 1134 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝐾 ∈ ℂ) | 
| 308 |  | 1cnd 11256 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ∈
ℂ) | 
| 309 | 307, 308 | pncand 11621 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝐾 + 1) − 1) = 𝐾) | 
| 310 | 56 | 3ad2ant1 1134 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝐾 ≤ 𝐾) | 
| 311 | 309, 310 | eqbrtrd 5165 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝐾 + 1) − 1) ≤ 𝐾) | 
| 312 | 299, 303,
300, 306, 311 | letrd 11418 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ≤ 𝐾) | 
| 313 | 277, 279,
284, 298, 312 | elfzd 13555 | . . . . . . . . . . . . . . . . 17
⊢ ((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ∈ (1...𝐾)) | 
| 314 | 313 | 3expa 1119 | . . . . . . . . . . . . . . . 16
⊢ (((𝜑 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ∈ (1...𝐾)) | 
| 315 | 314 | 3adantl2 1168 | . . . . . . . . . . . . . . 15
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ∈ (1...𝐾)) | 
| 316 | 315 | adantlr 715 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ∈ (1...𝐾)) | 
| 317 |  | ovexd 7466 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)) ∈ V) | 
| 318 | 233, 276,
316, 317 | fvmptd 7023 | . . . . . . . . . . . . 13
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘(𝑘 − 1)) = ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) | 
| 319 | 272, 318 | oveq12d 7449 | . . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘𝑘) − ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘(𝑘 − 1))) = ((𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) − ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)))) | 
| 320 | 319 | oveq1d 7446 | . . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘𝑘) − ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘(𝑘 − 1))) − 1) = (((𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) − ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1)) | 
| 321 | 246 | zcnd 12723 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ∈ ℂ) | 
| 322 |  | fzfid 14014 | . . . . . . . . . . . . . . . 16
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (1...𝑘) ∈ Fin) | 
| 323 |  | 1zzd 12648 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 1 ∈ ℤ) | 
| 324 | 241 | adantr 480 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝐾 ∈ ℤ) | 
| 325 | 324 | peano2zd 12725 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → (𝐾 + 1) ∈ ℤ) | 
| 326 |  | elfznn 13593 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝑙 ∈ (1...𝑘) → 𝑙 ∈ ℕ) | 
| 327 | 326 | adantl 481 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑙 ∈ ℕ) | 
| 328 | 327 | nnzd 12640 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑙 ∈ ℤ) | 
| 329 | 327 | nnge1d 12314 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 1 ≤ 𝑙) | 
| 330 | 327 | nnred 12281 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑙 ∈ ℝ) | 
| 331 | 262 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑘 ∈ ℝ) | 
| 332 | 263 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → (𝐾 + 1) ∈ ℝ) | 
| 333 |  | elfzle2 13568 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝑙 ∈ (1...𝑘) → 𝑙 ≤ 𝑘) | 
| 334 | 333 | adantl 481 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑙 ≤ 𝑘) | 
| 335 | 257 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑘 ≤ (𝐾 + 1)) | 
| 336 | 330, 331,
332, 334, 335 | letrd 11418 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑙 ≤ (𝐾 + 1)) | 
| 337 | 323, 325,
328, 329, 336 | elfzd 13555 | . . . . . . . . . . . . . . . . 17
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑙 ∈ (1...(𝐾 + 1))) | 
| 338 | 97 | 3adant3 1133 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 𝑐:(1...(𝐾 +
1))⟶ℕ0) | 
| 339 | 338 | adantr 480 | . . . . . . . . . . . . . . . . . . . 20
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑐:(1...(𝐾 +
1))⟶ℕ0) | 
| 340 | 339 | adantr 480 | . . . . . . . . . . . . . . . . . . 19
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑐:(1...(𝐾 +
1))⟶ℕ0) | 
| 341 | 340 | adantr 480 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → 𝑐:(1...(𝐾 +
1))⟶ℕ0) | 
| 342 | 341 | ffvelcdmda 7104 | . . . . . . . . . . . . . . . . 17
⊢
((((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) ∧ 𝑙 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑙) ∈
ℕ0) | 
| 343 | 337, 342 | mpdan 687 | . . . . . . . . . . . . . . . 16
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → (𝑐‘𝑙) ∈
ℕ0) | 
| 344 | 322, 343 | fsumnn0cl 15772 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) ∈
ℕ0) | 
| 345 | 344 | nn0cnd 12589 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) ∈ ℂ) | 
| 346 |  | 1cnd 11256 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 1 ∈
ℂ) | 
| 347 | 321, 346 | subcld 11620 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − 1) ∈ ℂ) | 
| 348 |  | fzfid 14014 | . . . . . . . . . . . . . . . 16
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (1...(𝑘 − 1)) ∈ Fin) | 
| 349 |  | 1zzd 12648 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 1 ∈
ℤ) | 
| 350 | 241 | adantr 480 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝐾 ∈ ℤ) | 
| 351 | 350 | peano2zd 12725 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → (𝐾 + 1) ∈ ℤ) | 
| 352 |  | elfznn 13593 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝑙 ∈ (1...(𝑘 − 1)) → 𝑙 ∈ ℕ) | 
| 353 | 352 | adantl 481 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑙 ∈ ℕ) | 
| 354 | 353 | nnzd 12640 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑙 ∈ ℤ) | 
| 355 | 353 | nnge1d 12314 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 1 ≤ 𝑙) | 
| 356 | 353 | nnred 12281 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑙 ∈ ℝ) | 
| 357 | 262 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . . 20
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑘 ∈ ℝ) | 
| 358 |  | 1red 11262 | . . . . . . . . . . . . . . . . . . . 20
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 1 ∈
ℝ) | 
| 359 | 357, 358 | resubcld 11691 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → (𝑘 − 1) ∈ ℝ) | 
| 360 | 263 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → (𝐾 + 1) ∈ ℝ) | 
| 361 |  | elfzle2 13568 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝑙 ∈ (1...(𝑘 − 1)) → 𝑙 ≤ (𝑘 − 1)) | 
| 362 | 361 | adantl 481 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑙 ≤ (𝑘 − 1)) | 
| 363 | 357 | lem1d 12201 | . . . . . . . . . . . . . . . . . . . 20
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → (𝑘 − 1) ≤ 𝑘) | 
| 364 | 257 | ad2antrr 726 | . . . . . . . . . . . . . . . . . . . 20
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑘 ≤ (𝐾 + 1)) | 
| 365 | 359, 357,
360, 363, 364 | letrd 11418 | . . . . . . . . . . . . . . . . . . 19
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → (𝑘 − 1) ≤ (𝐾 + 1)) | 
| 366 | 356, 359,
360, 362, 365 | letrd 11418 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑙 ≤ (𝐾 + 1)) | 
| 367 | 349, 351,
354, 355, 366 | elfzd 13555 | . . . . . . . . . . . . . . . . 17
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑙 ∈ (1...(𝐾 + 1))) | 
| 368 | 340 | adantr 480 | . . . . . . . . . . . . . . . . . 18
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → 𝑐:(1...(𝐾 +
1))⟶ℕ0) | 
| 369 | 368 | ffvelcdmda 7104 | . . . . . . . . . . . . . . . . 17
⊢
((((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) ∧ 𝑙 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑙) ∈
ℕ0) | 
| 370 | 367, 369 | mpdan 687 | . . . . . . . . . . . . . . . 16
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...(𝑘 − 1))) → (𝑐‘𝑙) ∈
ℕ0) | 
| 371 | 348, 370 | fsumnn0cl 15772 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙) ∈
ℕ0) | 
| 372 | 371 | nn0cnd 12589 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙) ∈ ℂ) | 
| 373 | 321, 345,
347, 372 | addsub4d 11667 | . . . . . . . . . . . . 13
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) − ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) = ((𝑘 − (𝑘 − 1)) + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)))) | 
| 374 | 373 | oveq1d 7446 | . . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (((𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) − ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1) = (((𝑘 − (𝑘 − 1)) + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1)) | 
| 375 | 321, 346 | nncand 11625 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑘 − (𝑘 − 1)) = 1) | 
| 376 | 375 | oveq1d 7446 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((𝑘 − (𝑘 − 1)) + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) = (1 + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)))) | 
| 377 | 376 | oveq1d 7446 | . . . . . . . . . . . . 13
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (((𝑘 − (𝑘 − 1)) + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1) = ((1 + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1)) | 
| 378 | 345, 372 | subcld 11620 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)) ∈ ℂ) | 
| 379 | 346, 378 | pncan2d 11622 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((1 + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1) = (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) | 
| 380 | 137 | 3adant3 1133 | . . . . . . . . . . . . . . . . . . . . 21
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 1 ∈
ℤ) | 
| 381 | 380, 244,
247 | 3jca 1129 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → (1 ∈ ℤ ∧ 𝑘 ∈ ℤ ∧ 1 ≤
𝑘)) | 
| 382 |  | eluz2 12884 | . . . . . . . . . . . . . . . . . . . 20
⊢ (𝑘 ∈
(ℤ≥‘1) ↔ (1 ∈ ℤ ∧ 𝑘 ∈ ℤ ∧ 1 ≤
𝑘)) | 
| 383 | 381, 382 | sylibr 234 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 𝑘 ∈
(ℤ≥‘1)) | 
| 384 | 383 | adantr 480 | . . . . . . . . . . . . . . . . . 18
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → 𝑘 ∈
(ℤ≥‘1)) | 
| 385 | 384 | adantr 480 | . . . . . . . . . . . . . . . . 17
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → 𝑘 ∈
(ℤ≥‘1)) | 
| 386 | 343 | nn0cnd 12589 | . . . . . . . . . . . . . . . . 17
⊢
(((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) ∧ 𝑙 ∈ (1...𝑘)) → (𝑐‘𝑙) ∈ ℂ) | 
| 387 |  | fveq2 6906 | . . . . . . . . . . . . . . . . 17
⊢ (𝑙 = 𝑘 → (𝑐‘𝑙) = (𝑐‘𝑘)) | 
| 388 | 385, 386,
387 | fsumm1 15787 | . . . . . . . . . . . . . . . 16
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) = (Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙) + (𝑐‘𝑘))) | 
| 389 | 388 | eqcomd 2743 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙) + (𝑐‘𝑘)) = Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) | 
| 390 |  | simp3 1139 | . . . . . . . . . . . . . . . . . . . 20
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → 𝑘 ∈ (1...(𝐾 + 1))) | 
| 391 | 338, 390 | ffvelcdmd 7105 | . . . . . . . . . . . . . . . . . . 19
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑘) ∈
ℕ0) | 
| 392 | 391 | nn0cnd 12589 | . . . . . . . . . . . . . . . . . 18
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → (𝑐‘𝑘) ∈ ℂ) | 
| 393 | 392 | adantr 480 | . . . . . . . . . . . . . . . . 17
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → (𝑐‘𝑘) ∈ ℂ) | 
| 394 | 393 | adantr 480 | . . . . . . . . . . . . . . . 16
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (𝑐‘𝑘) ∈ ℂ) | 
| 395 | 345, 372,
394 | subaddd 11638 | . . . . . . . . . . . . . . 15
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)) = (𝑐‘𝑘) ↔ (Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙) + (𝑐‘𝑘)) = Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙))) | 
| 396 | 389, 395 | mpbird 257 | . . . . . . . . . . . . . 14
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙)) = (𝑐‘𝑘)) | 
| 397 | 379, 396 | eqtrd 2777 | . . . . . . . . . . . . 13
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((1 + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1) = (𝑐‘𝑘)) | 
| 398 | 377, 397 | eqtrd 2777 | . . . . . . . . . . . 12
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (((𝑘 − (𝑘 − 1)) + (Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙) − Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1) = (𝑐‘𝑘)) | 
| 399 | 374, 398 | eqtrd 2777 | . . . . . . . . . . 11
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → (((𝑘 + Σ𝑙 ∈ (1...𝑘)(𝑐‘𝑙)) − ((𝑘 − 1) + Σ𝑙 ∈ (1...(𝑘 − 1))(𝑐‘𝑙))) − 1) = (𝑐‘𝑘)) | 
| 400 | 320, 399 | eqtrd 2777 | . . . . . . . . . 10
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘𝑘) − ((𝑗 ∈ (1...𝐾) ↦ (𝑗 + Σ𝑙 ∈ (1...𝑗)(𝑐‘𝑙)))‘(𝑘 − 1))) − 1) = (𝑐‘𝑘)) | 
| 401 | 232, 400 | eqtrd 2777 | . . . . . . . . 9
⊢ ((((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) ∧ ¬ 𝑘 = 1) → ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1) = (𝑐‘𝑘)) | 
| 402 | 218, 401 | ifeqda 4562 | . . . . . . . 8
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) ∧ ¬ 𝑘 = (𝐾 + 1)) → if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1)) = (𝑐‘𝑘)) | 
| 403 | 164, 402 | ifeqda 4562 | . . . . . . 7
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴 ∧ 𝑘 ∈ (1...(𝐾 + 1))) → if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1))) = (𝑐‘𝑘)) | 
| 404 | 403 | 3expa 1119 | . . . . . 6
⊢ (((𝜑 ∧ 𝑐 ∈ 𝐴) ∧ 𝑘 ∈ (1...(𝐾 + 1))) → if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1))) = (𝑐‘𝑘)) | 
| 405 | 404 | mpteq2dva 5242 | . . . . 5
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1)))) = (𝑘 ∈ (1...(𝐾 + 1)) ↦ (𝑐‘𝑘))) | 
| 406 | 97 | ffnd 6737 | . . . . . . 7
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝑐 Fn (1...(𝐾 + 1))) | 
| 407 |  | dffn5 6967 | . . . . . . . 8
⊢ (𝑐 Fn (1...(𝐾 + 1)) ↔ 𝑐 = (𝑘 ∈ (1...(𝐾 + 1)) ↦ (𝑐‘𝑘))) | 
| 408 | 407 | biimpi 216 | . . . . . . 7
⊢ (𝑐 Fn (1...(𝐾 + 1)) → 𝑐 = (𝑘 ∈ (1...(𝐾 + 1)) ↦ (𝑐‘𝑘))) | 
| 409 | 406, 408 | syl 17 | . . . . . 6
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → 𝑐 = (𝑘 ∈ (1...(𝐾 + 1)) ↦ (𝑐‘𝑘))) | 
| 410 | 409 | eqcomd 2743 | . . . . 5
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑘 ∈ (1...(𝐾 + 1)) ↦ (𝑐‘𝑘)) = 𝑐) | 
| 411 | 405, 410 | eqtrd 2777 | . . . 4
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝑘 ∈ (1...(𝐾 + 1)) ↦ if(𝑘 = (𝐾 + 1), ((𝑁 + 𝐾) − ((𝐹‘𝑐)‘𝐾)), if(𝑘 = 1, (((𝐹‘𝑐)‘1) − 1), ((((𝐹‘𝑐)‘𝑘) − ((𝐹‘𝑐)‘(𝑘 − 1))) − 1)))) = 𝑐) | 
| 412 | 37, 411 | eqtrd 2777 | . . 3
⊢ ((𝜑 ∧ 𝑐 ∈ 𝐴) → (𝐺‘(𝐹‘𝑐)) = 𝑐) | 
| 413 | 412 | ralrimiva 3146 | . 2
⊢ (𝜑 → ∀𝑐 ∈ 𝐴 (𝐺‘(𝐹‘𝑐)) = 𝑐) | 
| 414 | 1, 2, 4, 8, 5, 6 | sticksstones12a 42158 | . 2
⊢ (𝜑 → ∀𝑑 ∈ 𝐵 (𝐹‘(𝐺‘𝑑)) = 𝑑) | 
| 415 | 7, 9, 413, 414 | 2fvidf1od 7318 | 1
⊢ (𝜑 → 𝐹:𝐴–1-1-onto→𝐵) |