Detailed syntax breakdown of Definition df-evl
| Step | Hyp | Ref
| Expression |
| 1 | | cevl 22097 |
. 2
class
eval |
| 2 | | vi |
. . 3
setvar 𝑖 |
| 3 | | vr |
. . 3
setvar 𝑟 |
| 4 | | cvv 3480 |
. . 3
class
V |
| 5 | 3 | cv 1539 |
. . . . 5
class 𝑟 |
| 6 | | cbs 17247 |
. . . . 5
class
Base |
| 7 | 5, 6 | cfv 6561 |
. . . 4
class
(Base‘𝑟) |
| 8 | 2 | cv 1539 |
. . . . 5
class 𝑖 |
| 9 | | ces 22096 |
. . . . 5
class
evalSub |
| 10 | 8, 5, 9 | co 7431 |
. . . 4
class (𝑖 evalSub 𝑟) |
| 11 | 7, 10 | cfv 6561 |
. . 3
class ((𝑖 evalSub 𝑟)‘(Base‘𝑟)) |
| 12 | 2, 3, 4, 4, 11 | cmpo 7433 |
. 2
class (𝑖 ∈ V, 𝑟 ∈ V ↦ ((𝑖 evalSub 𝑟)‘(Base‘𝑟))) |
| 13 | 1, 12 | wceq 1540 |
1
wff eval =
(𝑖 ∈ V, 𝑟 ∈ V ↦ ((𝑖 evalSub 𝑟)‘(Base‘𝑟))) |