Proof of Theorem osumlem4
| Step | Hyp | Ref
| Expression |
| 1 | | osumlem4.2 |
. . . . . . . 8
⊢ B
∈ Cℋ |
| 2 | 1 | chssi 5136 |
. . . . . . 7
⊢ B
⊆ ℋ |
| 3 | | fss 2759 |
. . . . . . 7
⊢ ((G:ℕ–→B ∧ B
⊆ ℋ ) → G:ℕ–→ ℋ ) |
| 4 | 2, 3 | mpan2 519 |
. . . . . 6
⊢ (G:ℕ–→B → G:ℕ–→ ℋ ) |
| 5 | 4 | ad2antlr 321 |
. . . . 5
⊢ (((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
→ G:ℕ–→ ℋ
) |
| 6 | | osumlem4.1 |
. . . . . . . . 9
⊢ A
∈ Cℋ |
| 7 | 6 | chshi 5132 |
. . . . . . . 8
⊢ A
∈ Sℋ |
| 8 | | shocss 5167 |
. . . . . . . 8
⊢ (A
∈ Sℋ → (⊥ ‘A) ⊆ ℋ ) |
| 9 | 7, 8 | ax-mp 6 |
. . . . . . 7
⊢ (⊥ ‘A) ⊆ ℋ |
| 10 | 9 | sseli 1504 |
. . . . . 6
⊢ (y
∈ (⊥ ‘A) → y ∈ ℋ ) |
| 11 | 10 | ad2antlr 321 |
. . . . 5
⊢ (((x
∈ A ∧ y ∈ (⊥ ‘A)) ∧ z =
(x +v y)) → y
∈ ℋ ) |
| 12 | 5, 11 | anim12i 268 |
. . . 4
⊢ ((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) → (G:ℕ–→ ℋ ∧ y ∈ ℋ )) |
| 13 | 12 | a1d 14 |
. . 3
⊢ ((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) → (H ⇝v z → (G:ℕ–→ ℋ ∧ y ∈ ℋ ))) |
| 14 | | ffvrn 2890 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((F:ℕ–→A ∧ w ∈
ℕ) → (F ‘w) ∈ A) |
| 15 | 14 | exp 291 |
. . . . . . . . . . . . . . . . . 18
⊢ (F:ℕ–→A → (w
∈ ℕ → (F ‘w) ∈ A)) |
| 16 | 15 | com12 13 |
. . . . . . . . . . . . . . . . 17
⊢ (w
∈ ℕ → (F:ℕ–→A → (F
‘w) ∈ A)) |
| 17 | | ffvrn 2890 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((G:ℕ–→B ∧ w ∈
ℕ) → (G ‘w) ∈ B) |
| 18 | 17 | exp 291 |
. . . . . . . . . . . . . . . . . 18
⊢ (G:ℕ–→B → (w
∈ ℕ → (G ‘w) ∈ B)) |
| 19 | 18 | com12 13 |
. . . . . . . . . . . . . . . . 17
⊢ (w
∈ ℕ → (G:ℕ–→B → (G
‘w) ∈ B)) |
| 20 | 16, 19 | anim12d 431 |
. . . . . . . . . . . . . . . 16
⊢ (w
∈ ℕ → ((F:ℕ–→A ∧ G:ℕ–→B) → ((F
‘w) ∈ A ∧ (G
‘w) ∈ B))) |
| 21 | | osumlem4.3 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ B
⊆ (⊥ ‘A) |
| 22 | | pm4.2 148 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (((((F
‘w) ∈ A ∧ (G
‘w) ∈ B) ∧ (H
‘w) = ((F ‘w)
+v (G ‘w))) ∧ ((x
∈ A ∧ y ∈ (⊥ ‘A)) ∧ z =
(x +v y))) ↔ ((((F ‘w)
∈ A ∧ (G ‘w)
∈ B) ∧ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y)))) |
| 23 | 6, 1, 21, 22 | osumlem3 5532 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (((((F
‘w) ∈ A ∧ (G
‘w) ∈ B) ∧ (H
‘w) = ((F ‘w)
+v (G ‘w))) ∧ ((x
∈ A ∧ y ∈ (⊥ ‘A)) ∧ z =
(x +v y))) → (norm ‘((G ‘w)
−v y)) ≤ (norm
‘((H ‘w) −v z))) |
| 24 | 23 | adantr 306 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((((((F ‘w)
∈ A ∧ (G ‘w)
∈ B) ∧ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ u ∈ ℝ) → (norm ‘((G ‘w)
−v y)) ≤ (norm
‘((H ‘w) −v z))) |
| 25 | 6, 1, 21, 22 | osumlem1 5530 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (((((F
‘w) ∈ A ∧ (G
‘w) ∈ B) ∧ (H
‘w) = ((F ‘w)
+v (G ‘w))) ∧ ((x
∈ A ∧ y ∈ (⊥ ‘A)) ∧ z =
(x +v y))) → ((((F ‘w)
∈ ℋ ∧ (G ‘w) ∈ ℋ ) ∧ (H ‘w)
∈ ℋ ) ∧ ((x ∈ ℋ
∧ y ∈ ℋ ) ∧ z ∈ ℋ ))) |
| 26 | | lelttrt 4289 |
. . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((norm ‘((G ‘w)
−v y)) ∈
ℝ ∧ (norm ‘((H
‘w) −v
z)) ∈ ℝ ∧ u ∈ ℝ) → (((norm ‘((G ‘w)
−v y)) ≤ (norm
‘((H ‘w) −v z)) ∧ (norm ‘((H ‘w)
−v z)) <
u) → (norm ‘((G ‘w)
−v y)) <
u)) |
| 27 | 26 | 3exp 611 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ ((norm ‘((G ‘w)
−v y)) ∈
ℝ → ((norm ‘((H
‘w) −v
z)) ∈ ℝ → (u ∈ ℝ → (((norm ‘((G ‘w)
−v y)) ≤ (norm
‘((H ‘w) −v z)) ∧ (norm ‘((H ‘w)
−v z)) <
u) → (norm ‘((G ‘w)
−v y)) <
u)))) |
| 28 | | hvsubclt 4998 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ (((G
‘w) ∈ ℋ ∧ y ∈ ℋ ) → ((G ‘w)
−v y) ∈
ℋ ) |
| 29 | | normclt 5076 |
. . . . . . . . . . . . . . . . . . . . . . . . . . 27
⊢ (((G
‘w) −v
y) ∈ ℋ → (norm
‘((G ‘w) −v y)) ∈ ℝ) |
| 30 | 28, 29 | syl 12 |
. . . . . . . . . . . . . . . . . . . . . . . . . 26
⊢ (((G
‘w) ∈ ℋ ∧ y ∈ ℋ ) → (norm ‘((G ‘w)
−v y)) ∈
ℝ) |
| 31 | 30 | adantrl 311 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (((G
‘w) ∈ ℋ ∧ (x ∈ ℋ ∧ y ∈ ℋ )) → (norm ‘((G ‘w)
−v y)) ∈
ℝ) |
| 32 | 31 | adantll 309 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢ ((((F
‘w) ∈ ℋ ∧ (G ‘w)
∈ ℋ ) ∧ (x ∈ ℋ
∧ y ∈ ℋ )) → (norm
‘((G ‘w) −v y)) ∈ ℝ) |
| 33 | 32 | adantrr 312 |
. . . . . . . . . . . . . . . . . . . . . . 23
⊢ ((((F
‘w) ∈ ℋ ∧ (G ‘w)
∈ ℋ ) ∧ ((x ∈ ℋ
∧ y ∈ ℋ ) ∧ z ∈ ℋ )) → (norm ‘((G ‘w)
−v y)) ∈
ℝ) |
| 34 | 33 | adantlr 310 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ (((((F
‘w) ∈ ℋ ∧ (G ‘w)
∈ ℋ ) ∧ (H ‘w) ∈ ℋ ) ∧ ((x ∈ ℋ ∧ y ∈ ℋ ) ∧ z ∈ ℋ )) → (norm ‘((G ‘w)
−v y)) ∈
ℝ) |
| 35 | | hvsubclt 4998 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (((H
‘w) ∈ ℋ ∧ z ∈ ℋ ) → ((H ‘w)
−v z) ∈
ℋ ) |
| 36 | | normclt 5076 |
. . . . . . . . . . . . . . . . . . . . . . . . 25
⊢ (((H
‘w) −v
z) ∈ ℋ → (norm
‘((H ‘w) −v z)) ∈ ℝ) |
| 37 | 35, 36 | syl 12 |
. . . . . . . . . . . . . . . . . . . . . . . 24
⊢ (((H
‘w) ∈ ℋ ∧ z ∈ ℋ ) → (norm ‘((H ‘w)
−v z)) ∈
ℝ) |
| 38 | 37 | adantrl 311 |
. . . . . . . . . . . . . . . . . . . . . . 23
⊢ (((H
‘w) ∈ ℋ ∧ ((x ∈ ℋ ∧ y ∈ ℋ ) ∧ z ∈ ℋ )) → (norm ‘((H ‘w)
−v z)) ∈
ℝ) |
| 39 | 38 | adantll 309 |
. . . . . . . . . . . . . . . . . . . . . 22
⊢ (((((F
‘w) ∈ ℋ ∧ (G ‘w)
∈ ℋ ) ∧ (H ‘w) ∈ ℋ ) ∧ ((x ∈ ℋ ∧ y ∈ ℋ ) ∧ z ∈ ℋ )) → (norm ‘((H ‘w)
−v z)) ∈
ℝ) |
| 40 | 27, 34, 39 | sylc 62 |
. . . . . . . . . . . . . . . . . . . . 21
⊢ (((((F
‘w) ∈ ℋ ∧ (G ‘w)
∈ ℋ ) ∧ (H ‘w) ∈ ℋ ) ∧ ((x ∈ ℋ ∧ y ∈ ℋ ) ∧ z ∈ ℋ )) → (u ∈ ℝ → (((norm ‘((G ‘w)
−v y)) ≤ (norm
‘((H ‘w) −v z)) ∧ (norm ‘((H ‘w)
−v z)) <
u) → (norm ‘((G ‘w)
−v y)) <
u))) |
| 41 | 25, 40 | syl 12 |
. . . . . . . . . . . . . . . . . . . 20
⊢ (((((F
‘w) ∈ A ∧ (G
‘w) ∈ B) ∧ (H
‘w) = ((F ‘w)
+v (G ‘w))) ∧ ((x
∈ A ∧ y ∈ (⊥ ‘A)) ∧ z =
(x +v y))) → (u
∈ ℝ → (((norm ‘((G
‘w) −v
y)) ≤ (norm ‘((H ‘w)
−v z)) ∧ (norm
‘((H ‘w) −v z)) < u)
→ (norm ‘((G ‘w) −v y)) < u))) |
| 42 | 41 | imp 277 |
. . . . . . . . . . . . . . . . . . 19
⊢ ((((((F ‘w)
∈ A ∧ (G ‘w)
∈ B) ∧ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ u ∈ ℝ) → (((norm ‘((G ‘w)
−v y)) ≤ (norm
‘((H ‘w) −v z)) ∧ (norm ‘((H ‘w)
−v z)) <
u) → (norm ‘((G ‘w)
−v y)) <
u)) |
| 43 | 24, 42 | mpand 524 |
. . . . . . . . . . . . . . . . . 18
⊢ ((((((F ‘w)
∈ A ∧ (G ‘w)
∈ B) ∧ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ u ∈ ℝ) → ((norm ‘((H ‘w)
−v z)) <
u → (norm ‘((G ‘w)
−v y)) <
u)) |
| 44 | 43 | exp41 299 |
. . . . . . . . . . . . . . . . 17
⊢ (((F
‘w) ∈ A ∧ (G
‘w) ∈ B) → ((H
‘w) = ((F ‘w)
+v (G ‘w)) → (((x
∈ A ∧ y ∈ (⊥ ‘A)) ∧ z =
(x +v y)) → (u
∈ ℝ → ((norm ‘((H
‘w) −v
z)) < u → (norm ‘((G ‘w)
−v y)) <
u))))) |
| 45 | 44 | com24 37 |
. . . . . . . . . . . . . . . 16
⊢ (((F
‘w) ∈ A ∧ (G
‘w) ∈ B) → (u
∈ ℝ → (((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y)) → ((H ‘w) =
((F ‘w) +v (G ‘w))
→ ((norm ‘((H ‘w) −v z)) < u
→ (norm ‘((G ‘w) −v y)) < u))))) |
| 46 | 20, 45 | syl6 23 |
. . . . . . . . . . . . . . 15
⊢ (w
∈ ℕ → ((F:ℕ–→A ∧ G:ℕ–→B) → (u
∈ ℝ → (((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y)) → ((H ‘w) =
((F ‘w) +v (G ‘w))
→ ((norm ‘((H ‘w) −v z)) < u
→ (norm ‘((G ‘w) −v y)) < u)))))) |
| 47 | 46 | com4l 39 |
. . . . . . . . . . . . . 14
⊢ ((F:ℕ–→A ∧ G:ℕ–→B) → (u
∈ ℝ → (((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y)) → (w ∈ ℕ → ((H ‘w) =
((F ‘w) +v (G ‘w))
→ ((norm ‘((H ‘w) −v z)) < u
→ (norm ‘((G ‘w) −v y)) < u)))))) |
| 48 | 47 | imp41 286 |
. . . . . . . . . . . . 13
⊢ (((((F:ℕ–→A ∧ G:ℕ–→B) ∧ u
∈ ℝ) ∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ w ∈ ℕ) → ((H ‘w) =
((F ‘w) +v (G ‘w))
→ ((norm ‘((H ‘w) −v z)) < u
→ (norm ‘((G ‘w) −v y)) < u))) |
| 49 | | syl1 16 |
. . . . . . . . . . . . 13
⊢ (((norm ‘((H ‘w)
−v z)) <
u → (norm ‘((G ‘w)
−v y)) <
u) → ((v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ (v ≤ w → (norm ‘((G ‘w)
−v y)) <
u))) |
| 50 | 48, 49 | syl6 23 |
. . . . . . . . . . . 12
⊢ (((((F:ℕ–→A ∧ G:ℕ–→B) ∧ u
∈ ℝ) ∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ w ∈ ℕ) → ((H ‘w) =
((F ‘w) +v (G ‘w))
→ ((v ≤ w → (norm ‘((H ‘w)
−v z)) <
u) → (v ≤ w →
(norm ‘((G ‘w) −v y)) < u)))) |
| 51 | 50 | r19.20dva 1256 |
. . . . . . . . . . 11
⊢ ((((F:ℕ–→A ∧ G:ℕ–→B) ∧ u
∈ ℝ) ∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) →
(∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w))
→ ∀w ∈ ℕ ((v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ (v ≤ w → (norm ‘((G ‘w)
−v y)) <
u)))) |
| 52 | 51 | exp31 293 |
. . . . . . . . . 10
⊢ ((F:ℕ–→A ∧ G:ℕ–→B) → (u
∈ ℝ → (((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y)) →
(∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w))
→ ∀w ∈ ℕ ((v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ (v ≤ w → (norm ‘((G ‘w)
−v y)) <
u)))))) |
| 53 | 52 | com24 37 |
. . . . . . . . 9
⊢ ((F:ℕ–→A ∧ G:ℕ–→B) → (∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w))
→ (((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y)) → (u ∈ ℝ → ∀w ∈ ℕ ((v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ (v ≤ w → (norm ‘((G ‘w)
−v y)) <
u)))))) |
| 54 | 53 | imp41 286 |
. . . . . . . 8
⊢ (((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ u ∈ ℝ) → ∀w ∈ ℕ ((v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ (v ≤ w → (norm ‘((G ‘w)
−v y)) <
u))) |
| 55 | | r19.20 1251 |
. . . . . . . 8
⊢ (∀w ∈ ℕ ((v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ (v ≤ w → (norm ‘((G ‘w)
−v y)) <
u)) → (∀w ∈ ℕ (v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ ∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u))) |
| 56 | 54, 55 | syl 12 |
. . . . . . 7
⊢ (((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ u ∈ ℝ) → (∀w ∈ ℕ (v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ ∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u))) |
| 57 | 56 | r19.22sdv 1279 |
. . . . . 6
⊢ (((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ u ∈ ℝ) → (∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((H ‘w) −v z)) < u)
→ ∃v ∈ ℕ
∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u))) |
| 58 | 57 | syl3d 26 |
. . . . 5
⊢ (((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) ∧ u ∈ ℝ) → ((0 < u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((H ‘w) −v z)) < u))
→ (0 < u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u)))) |
| 59 | 58 | r19.20dva 1256 |
. . . 4
⊢ ((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) →
(∀u ∈ ℝ (0 < u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((H ‘w) −v z)) < u))
→ ∀u ∈ ℝ (0 <
u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u)))) |
| 60 | | osumlem4.5 |
. . . . 5
⊢ H
∈ V |
| 61 | | visset 1350 |
. . . . 5
⊢ z
∈ V |
| 62 | 60, 61 | hlimconv 5111 |
. . . 4
⊢ (H
⇝v z →
∀u ∈ ℝ (0 < u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((H ‘w) −v z)) < u))) |
| 63 | 59, 62 | syl5 22 |
. . 3
⊢ ((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) → (H ⇝v z → ∀u ∈ ℝ (0 < u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u)))) |
| 64 | 13, 63 | jcad 455 |
. 2
⊢ ((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) → (H ⇝v z → ((G:ℕ–→ ℋ ∧ y ∈ ℋ ) ∧ ∀u ∈ ℝ (0 < u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u))))) |
| 65 | | osumlem4.4 |
. . 3
⊢ G
∈ V |
| 66 | | visset 1350 |
. . 3
⊢ y
∈ V |
| 67 | 65, 66 | hlim 5108 |
. 2
⊢ (G
⇝v y ↔
((G:ℕ–→ ℋ ∧
y ∈ ℋ ) ∧ ∀u ∈ ℝ (0 < u → ∃v ∈ ℕ ∀w ∈ ℕ (v ≤ w →
(norm ‘((G ‘w) −v y)) < u)))) |
| 68 | 64, 67 | syl6ibr 186 |
1
⊢ ((((F:ℕ–→A ∧ G:ℕ–→B) ∧ ∀w ∈ ℕ (H ‘w) =
((F ‘w) +v (G ‘w)))
∧ ((x ∈ A ∧ y ∈
(⊥ ‘A)) ∧ z = (x
+v y))) → (H ⇝v z → G
⇝v y)) |