Proof of Theorem seqrn
| Step | Hyp | Ref
| Expression |
| 1 | | fveq2 2832 |
. . . . . . 7
⊢ (y = 1
→ ((SseqF) ‘y) =
((SseqF) ‘1)) |
| 2 | 1 | eleq1d 1155 |
. . . . . 6
⊢ (y = 1
→ (((SseqF) ‘y)
∈ C ↔ ((SseqF) ‘1)
∈ C)) |
| 3 | 2 | imbi2d 464 |
. . . . 5
⊢ (y = 1
→ ((((F ‘1) ∈ C ∧ (F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘y) ∈ C) ↔ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF) ‘1)
∈ C))) |
| 4 | | fveq2 2832 |
. . . . . . 7
⊢ (y =
z → ((SseqF)
‘y) = ((SseqF)
‘z)) |
| 5 | 4 | eleq1d 1155 |
. . . . . 6
⊢ (y =
z → (((SseqF)
‘y) ∈ C ↔ ((SseqF)
‘z) ∈ C)) |
| 6 | 5 | imbi2d 464 |
. . . . 5
⊢ (y =
z → ((((F ‘1) ∈ C ∧ (F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘y) ∈ C) ↔ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘z) ∈ C))) |
| 7 | | fveq2 2832 |
. . . . . . 7
⊢ (y =
(z + 1) → ((SseqF)
‘y) = ((SseqF)
‘(z + 1))) |
| 8 | 7 | eleq1d 1155 |
. . . . . 6
⊢ (y =
(z + 1) → (((SseqF)
‘y) ∈ C ↔ ((SseqF)
‘(z + 1)) ∈ C)) |
| 9 | 8 | imbi2d 464 |
. . . . 5
⊢ (y =
(z + 1) → ((((F ‘1) ∈ C ∧ (F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘y) ∈ C) ↔ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘(z + 1)) ∈ C))) |
| 10 | | fveq2 2832 |
. . . . . . 7
⊢ (y =
x → ((SseqF)
‘y) = ((SseqF)
‘x)) |
| 11 | 10 | eleq1d 1155 |
. . . . . 6
⊢ (y =
x → (((SseqF)
‘y) ∈ C ↔ ((SseqF)
‘x) ∈ C)) |
| 12 | 11 | imbi2d 464 |
. . . . 5
⊢ (y =
x → ((((F ‘1) ∈ C ∧ (F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘y) ∈ C) ↔ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘x) ∈ C))) |
| 13 | | pm3.26 256 |
. . . . . . 7
⊢ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D) → (F ‘1) ∈ C) |
| 14 | | seq1.1 |
. . . . . . . . 9
⊢ S
∈ V |
| 15 | | seq1.2 |
. . . . . . . . 9
⊢ F
∈ V |
| 16 | 14, 15 | seq1 4670 |
. . . . . . . 8
⊢ ((SseqF) ‘1)
= (F ‘1) |
| 17 | 16 | eleq1i 1152 |
. . . . . . 7
⊢ (((SseqF) ‘1)
∈ C ↔ (F ‘1) ∈ C) |
| 18 | 13, 17 | sylibr 175 |
. . . . . 6
⊢ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D) → ((SseqF) ‘1)
∈ C) |
| 19 | 18 | 3adant3 599 |
. . . . 5
⊢ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF) ‘1)
∈ C) |
| 20 | | ffvrn 2890 |
. . . . . . . . . . . . . . 15
⊢ (((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ (z + 1)
∈ (ℕ ∖ {1})) → ((F
↾ (ℕ ∖ {1})) ‘(z +
1)) ∈ D) |
| 21 | | fvres 2840 |
. . . . . . . . . . . . . . . . 17
⊢ ((z +
1) ∈ (ℕ ∖ {1}) → ((F
↾ (ℕ ∖ {1})) ‘(z +
1)) = (F ‘(z + 1))) |
| 22 | 21 | eleq1d 1155 |
. . . . . . . . . . . . . . . 16
⊢ ((z +
1) ∈ (ℕ ∖ {1}) → (((F
↾ (ℕ ∖ {1})) ‘(z +
1)) ∈ D ↔ (F ‘(z +
1)) ∈ D)) |
| 23 | 22 | adantl 305 |
. . . . . . . . . . . . . . 15
⊢ (((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ (z + 1)
∈ (ℕ ∖ {1})) → (((F
↾ (ℕ ∖ {1})) ‘(z +
1)) ∈ D ↔ (F ‘(z +
1)) ∈ D)) |
| 24 | 20, 23 | mpbid 170 |
. . . . . . . . . . . . . 14
⊢ (((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ (z + 1)
∈ (ℕ ∖ {1})) → (F
‘(z + 1)) ∈ D) |
| 25 | | seqlem2 4663 |
. . . . . . . . . . . . . 14
⊢ (z
∈ ℕ → (z + 1) ∈
(ℕ ∖ {1})) |
| 26 | 24, 25 | sylan2 346 |
. . . . . . . . . . . . 13
⊢ (((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ z ∈
ℕ) → (F ‘(z + 1)) ∈ D) |
| 27 | 14, 15 | seqsuc 4671 |
. . . . . . . . . . . . . . . . . 18
⊢ (z
∈ ℕ → ((SseqF) ‘(z +
1)) = (((SseqF) ‘z)S(F ‘(z +
1)))) |
| 28 | 27 | eleq1d 1155 |
. . . . . . . . . . . . . . . . 17
⊢ (z
∈ ℕ → (((SseqF) ‘(z +
1)) ∈ C ↔ (((SseqF)
‘z)S(F
‘(z + 1))) ∈ C)) |
| 29 | | ffnoprval 3041 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (S:(C ×
D)–→C ↔ (S Fn
(C × D) ∧ ∀w ∈ C
∀v ∈ D (wSv) ∈
C)) |
| 30 | 29 | pm3.27bd 263 |
. . . . . . . . . . . . . . . . . . 19
⊢ (S:(C ×
D)–→C → ∀w ∈ C
∀v ∈ D (wSv) ∈
C) |
| 31 | | opreq1 3006 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (w =
((SseqF) ‘z)
→ (wSv) =
(((SseqF) ‘z)Sv)) |
| 32 | 31 | eleq1d 1155 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (w =
((SseqF) ‘z)
→ ((wSv) ∈
C ↔ (((SseqF)
‘z)Sv) ∈
C)) |
| 33 | | opreq2 3007 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (v =
(F ‘(z + 1)) → (((SseqF)
‘z)Sv) =
(((SseqF) ‘z)S(F ‘(z +
1)))) |
| 34 | 33 | eleq1d 1155 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (v =
(F ‘(z + 1)) → ((((SseqF)
‘z)Sv) ∈
C ↔ (((SseqF)
‘z)S(F
‘(z + 1))) ∈ C)) |
| 35 | 32, 34 | rcla42v 1404 |
. . . . . . . . . . . . . . . . . . 19
⊢ (∀w ∈ C
∀v ∈ D (wSv) ∈
C → ((((SseqF)
‘z) ∈ C ∧ (F
‘(z + 1)) ∈ D) → (((SseqF)
‘z)S(F
‘(z + 1))) ∈ C)) |
| 36 | 30, 35 | syl 12 |
. . . . . . . . . . . . . . . . . 18
⊢ (S:(C ×
D)–→C → ((((SseqF)
‘z) ∈ C ∧ (F
‘(z + 1)) ∈ D) → (((SseqF)
‘z)S(F
‘(z + 1))) ∈ C)) |
| 37 | 36 | imp 277 |
. . . . . . . . . . . . . . . . 17
⊢ ((S:(C ×
D)–→C ∧ (((SseqF)
‘z) ∈ C ∧ (F
‘(z + 1)) ∈ D)) → (((SseqF)
‘z)S(F
‘(z + 1))) ∈ C) |
| 38 | 28, 37 | syl5bir 184 |
. . . . . . . . . . . . . . . 16
⊢ (z
∈ ℕ → ((S:(C × D)–→C
∧ (((SseqF) ‘z)
∈ C ∧ (F ‘(z +
1)) ∈ D)) → ((SseqF)
‘(z + 1)) ∈ C)) |
| 39 | 38 | exp4d 298 |
. . . . . . . . . . . . . . 15
⊢ (z
∈ ℕ → (S:(C × D)–→C
→ (((SseqF) ‘z)
∈ C → ((F ‘(z +
1)) ∈ D → ((SseqF)
‘(z + 1)) ∈ C)))) |
| 40 | 39 | com24 37 |
. . . . . . . . . . . . . 14
⊢ (z
∈ ℕ → ((F ‘(z + 1)) ∈ D
→ (((SseqF) ‘z)
∈ C → (S:(C ×
D)–→C → ((SseqF)
‘(z + 1)) ∈ C)))) |
| 41 | 40 | adantl 305 |
. . . . . . . . . . . . 13
⊢ (((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ z ∈
ℕ) → ((F ‘(z + 1)) ∈ D
→ (((SseqF) ‘z)
∈ C → (S:(C ×
D)–→C → ((SseqF)
‘(z + 1)) ∈ C)))) |
| 42 | 26, 41 | mpd 46 |
. . . . . . . . . . . 12
⊢ (((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ z ∈
ℕ) → (((SseqF) ‘z)
∈ C → (S:(C ×
D)–→C → ((SseqF)
‘(z + 1)) ∈ C))) |
| 43 | 42 | exp 291 |
. . . . . . . . . . 11
⊢ ((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D → (z
∈ ℕ → (((SseqF) ‘z)
∈ C → (S:(C ×
D)–→C → ((SseqF)
‘(z + 1)) ∈ C)))) |
| 44 | 43 | com4r 41 |
. . . . . . . . . 10
⊢ (S:(C ×
D)–→C → ((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D → (z
∈ ℕ → (((SseqF) ‘z)
∈ C → ((SseqF)
‘(z + 1)) ∈ C)))) |
| 45 | 44 | com12 13 |
. . . . . . . . 9
⊢ ((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D → (S:(C ×
D)–→C → (z
∈ ℕ → (((SseqF) ‘z)
∈ C → ((SseqF)
‘(z + 1)) ∈ C)))) |
| 46 | 45 | imp 277 |
. . . . . . . 8
⊢ (((F
↾ (ℕ ∖ {1})):(ℕ ∖ {1})–→D ∧ S:(C ×
D)–→C) → (z
∈ ℕ → (((SseqF) ‘z)
∈ C → ((SseqF)
‘(z + 1)) ∈ C))) |
| 47 | 46 | 3adant1 597 |
. . . . . . 7
⊢ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → (z
∈ ℕ → (((SseqF) ‘z)
∈ C → ((SseqF)
‘(z + 1)) ∈ C))) |
| 48 | 47 | com12 13 |
. . . . . 6
⊢ (z
∈ ℕ → (((F ‘1) ∈
C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → (((SseqF)
‘z) ∈ C → ((SseqF)
‘(z + 1)) ∈ C))) |
| 49 | 48 | a2d 15 |
. . . . 5
⊢ (z
∈ ℕ → ((((F ‘1)
∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘z) ∈ C) → (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘(z + 1)) ∈ C))) |
| 50 | 3, 6, 9, 12, 19, 49 | nnind 4434 |
. . . 4
⊢ (x
∈ ℕ → (((F ‘1) ∈
C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ((SseqF)
‘x) ∈ C)) |
| 51 | 50 | com12 13 |
. . 3
⊢ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → (x
∈ ℕ → ((SseqF) ‘x)
∈ C)) |
| 52 | 51 | r19.21aiv 1259 |
. 2
⊢ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ∀x ∈ ℕ ((SseqF)
‘x) ∈ C) |
| 53 | 14, 15 | seqfn 4672 |
. . 3
⊢ (SseqF) Fn
ℕ |
| 54 | | fnfvrnss 2893 |
. . 3
⊢ (((SseqF) Fn
ℕ ∧ ∀x ∈ ℕ
((SseqF) ‘x)
∈ C) → ran (SseqF) ⊆
C) |
| 55 | 53, 54 | mpan 518 |
. 2
⊢ (∀x ∈ ℕ ((SseqF)
‘x) ∈ C → ran (SseqF) ⊆
C) |
| 56 | 52, 55 | syl 12 |
1
⊢ (((F
‘1) ∈ C ∧ (F ↾ (ℕ ∖ {1})):(ℕ ∖
{1})–→D ∧ S:(C ×
D)–→C) → ran (SseqF) ⊆
C) |