Proof of Theorem om2uzf1o
| Step | Hyp | Ref
| Expression |
| 1 | | frfnom 2989 |
. . . . . . . 8
⊢ (rec({〈x, y〉∣y
= (x + 1)}, C) ↾ ω) Fn ω |
| 2 | | om2uz.2 |
. . . . . . . . 9
⊢ G =
(rec({〈x, y〉∣y
= (x + 1)}, C) ↾ ω) |
| 3 | | fneq1 2718 |
. . . . . . . . 9
⊢ (G =
(rec({〈x, y〉∣y
= (x + 1)}, C) ↾ ω) → (G Fn ω ↔ (rec({〈x, y〉∣y
= (x + 1)}, C) ↾ ω) Fn ω)) |
| 4 | 2, 3 | ax-mp 6 |
. . . . . . . 8
⊢ (G Fn
ω ↔ (rec({〈x, y〉∣y
= (x + 1)}, C) ↾ ω) Fn ω) |
| 5 | 1, 4 | mpbir 165 |
. . . . . . 7
⊢ G Fn
ω |
| 6 | | om2uz.1 |
. . . . . . . . 9
⊢ C
∈ ℤ |
| 7 | 6, 2 | om2uzran 4655 |
. . . . . . . 8
⊢ ran G
= {z ∈ ℤ∣C ≤ z} |
| 8 | | eqimss 1548 |
. . . . . . . 8
⊢ (ran G
= {z ∈ ℤ∣C ≤ z} →
ran G ⊆ {z ∈ ℤ∣C ≤ z}) |
| 9 | 7, 8 | ax-mp 6 |
. . . . . . 7
⊢ ran G
⊆ {z ∈ ℤ∣C ≤ z} |
| 10 | 5, 9 | pm3.2i 234 |
. . . . . 6
⊢ (G Fn
ω ∧ ran G ⊆ {z ∈ ℤ∣C ≤ z}) |
| 11 | | df-f 2434 |
. . . . . 6
⊢ (G:ω–→{z ∈ ℤ∣C ≤ z} ↔
(G Fn ω ∧ ran G ⊆ {z
∈ ℤ∣C ≤ z})) |
| 12 | 10, 11 | mpbir 165 |
. . . . 5
⊢ G:ω–→{z ∈ ℤ∣C ≤ z} |
| 13 | | lttri3t 4281 |
. . . . . . . . 9
⊢ (((G
‘w) ∈ ℝ ∧ (G ‘v)
∈ ℝ) → ((G ‘w) = (G
‘v) ↔ (¬ (G ‘w) <
(G ‘v) ∧ ¬ (G ‘v) <
(G ‘w)))) |
| 14 | 6, 2 | om2uzuz 4653 |
. . . . . . . . . 10
⊢ (w
∈ ω → (G ‘w) ∈ {z
∈ ℤ∣C ≤ z}) |
| 15 | | ssrab 1556 |
. . . . . . . . . . 11
⊢ {z
∈ ℤ∣C ≤ z} ⊆ ℤ |
| 16 | 15 | sseli 1504 |
. . . . . . . . . 10
⊢ ((G
‘w) ∈ {z ∈ ℤ∣C ≤ z} →
(G ‘w) ∈ ℤ) |
| 17 | | zret 4567 |
. . . . . . . . . 10
⊢ ((G
‘w) ∈ ℤ → (G ‘w)
∈ ℝ) |
| 18 | 14, 16, 17 | 3syl 21 |
. . . . . . . . 9
⊢ (w
∈ ω → (G ‘w) ∈ ℝ) |
| 19 | 6, 2 | om2uzuz 4653 |
. . . . . . . . . 10
⊢ (v
∈ ω → (G ‘v) ∈ {z
∈ ℤ∣C ≤ z}) |
| 20 | 15 | sseli 1504 |
. . . . . . . . . 10
⊢ ((G
‘v) ∈ {z ∈ ℤ∣C ≤ z} →
(G ‘v) ∈ ℤ) |
| 21 | | zret 4567 |
. . . . . . . . . 10
⊢ ((G
‘v) ∈ ℤ → (G ‘v)
∈ ℝ) |
| 22 | 19, 20, 21 | 3syl 21 |
. . . . . . . . 9
⊢ (v
∈ ω → (G ‘v) ∈ ℝ) |
| 23 | 13, 18, 22 | syl2an 349 |
. . . . . . . 8
⊢ ((w
∈ ω ∧ v ∈ ω)
→ ((G ‘w) = (G
‘v) ↔ (¬ (G ‘w) <
(G ‘v) ∧ ¬ (G ‘v) <
(G ‘w)))) |
| 24 | | ioran 254 |
. . . . . . . 8
⊢ (¬ ((G ‘w) <
(G ‘v) ∨ (G
‘v) < (G ‘w))
↔ (¬ (G ‘w) < (G
‘v) ∧ ¬ (G ‘v) <
(G ‘w))) |
| 25 | 23, 24 | syl6bbr 416 |
. . . . . . 7
⊢ ((w
∈ ω ∧ v ∈ ω)
→ ((G ‘w) = (G
‘v) ↔ ¬ ((G ‘w) <
(G ‘v) ∨ (G
‘v) < (G ‘w)))) |
| 26 | | ordtri3 2234 |
. . . . . . . . . . 11
⊢ ((Ord w ∧ Ord v)
→ (w = v ↔ ¬ (w ∈ v ∨
v ∈ w))) |
| 27 | | nnord 2381 |
. . . . . . . . . . 11
⊢ (w
∈ ω → Ord w) |
| 28 | | nnord 2381 |
. . . . . . . . . . 11
⊢ (v
∈ ω → Ord v) |
| 29 | 26, 27, 28 | syl2an 349 |
. . . . . . . . . 10
⊢ ((w
∈ ω ∧ v ∈ ω)
→ (w = v ↔ ¬ (w ∈ v ∨
v ∈ w))) |
| 30 | 29 | bicon2d 404 |
. . . . . . . . 9
⊢ ((w
∈ ω ∧ v ∈ ω)
→ ((w ∈ v ∨ v ∈
w) ↔ ¬ w = v)) |
| 31 | 6, 2 | om2uzlt 4654 |
. . . . . . . . . 10
⊢ ((w
∈ ω ∧ v ∈ ω)
→ (w ∈ v → (G
‘w) < (G ‘v))) |
| 32 | 6, 2 | om2uzlt 4654 |
. . . . . . . . . . 11
⊢ ((v
∈ ω ∧ w ∈ ω)
→ (v ∈ w → (G
‘v) < (G ‘w))) |
| 33 | 32 | ancoms 334 |
. . . . . . . . . 10
⊢ ((w
∈ ω ∧ v ∈ ω)
→ (v ∈ w → (G
‘v) < (G ‘w))) |
| 34 | 31, 33 | orim12d 436 |
. . . . . . . . 9
⊢ ((w
∈ ω ∧ v ∈ ω)
→ ((w ∈ v ∨ v ∈
w) → ((G ‘w) <
(G ‘v) ∨ (G
‘v) < (G ‘w)))) |
| 35 | 30, 34 | sylbird 180 |
. . . . . . . 8
⊢ ((w
∈ ω ∧ v ∈ ω)
→ (¬ w = v → ((G
‘w) < (G ‘v) ∨
(G ‘v) < (G
‘w)))) |
| 36 | 35 | con1d 85 |
. . . . . . 7
⊢ ((w
∈ ω ∧ v ∈ ω)
→ (¬ ((G ‘w) < (G
‘v) ∨ (G ‘v) <
(G ‘w)) → w =
v)) |
| 37 | 25, 36 | sylbid 178 |
. . . . . 6
⊢ ((w
∈ ω ∧ v ∈ ω)
→ ((G ‘w) = (G
‘v) → w = v)) |
| 38 | 37 | rgen2 1248 |
. . . . 5
⊢ ∀w ∈ ω ∀v ∈ ω ((G ‘w) =
(G ‘v) → w =
v) |
| 39 | 12, 38 | pm3.2i 234 |
. . . 4
⊢ (G:ω–→{z ∈ ℤ∣C ≤ z} ∧
∀w ∈ ω ∀v ∈ ω ((G ‘w) =
(G ‘v) → w =
v)) |
| 40 | | f1fv 2916 |
. . . 4
⊢ (G:ω–1-1→{z ∈
ℤ∣C ≤ z} ↔ (G:ω–→{z ∈ ℤ∣C ≤ z} ∧
∀w ∈ ω ∀v ∈ ω ((G ‘w) =
(G ‘v) → w =
v))) |
| 41 | 39, 40 | mpbir 165 |
. . 3
⊢ G:ω–1-1→{z ∈
ℤ∣C ≤ z} |
| 42 | 41, 7 | pm3.2i 234 |
. 2
⊢ (G:ω–1-1→{z ∈
ℤ∣C ≤ z} ∧ ran G =
{z ∈ ℤ∣C ≤ z}) |
| 43 | | f1o5 2808 |
. 2
⊢ (G:ω–1-1-onto→{z ∈
ℤ∣C ≤ z} ↔ (G:ω–1-1→{z ∈
ℤ∣C ≤ z} ∧ ran G =
{z ∈ ℤ∣C ≤ z})) |
| 44 | 42, 43 | mpbir 165 |
1
⊢ G:ω–1-1-onto→{z ∈
ℤ∣C ≤ z} |