![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > df-dm | Unicode version |
Description: Define the domain of a
class. Definition 3 of [Suppes] p. 59. For
example, F = { ![]() ![]() ![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
df-dm |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cA |
. . 3
![]() ![]() | |
2 | 1 | cdm 4626 |
. 2
![]() ![]() ![]() |
3 | vx |
. . . . . 6
![]() ![]() | |
4 | 3 | cv 1352 |
. . . . 5
![]() ![]() |
5 | vy |
. . . . . 6
![]() ![]() | |
6 | 5 | cv 1352 |
. . . . 5
![]() ![]() |
7 | 4, 6, 1 | wbr 4003 |
. . . 4
![]() ![]() ![]() ![]() |
8 | 7, 5 | wex 1492 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() |
9 | 8, 3 | cab 2163 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
10 | 2, 9 | wceq 1353 |
1
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff set class |
This definition is referenced by: dfdm3 4814 dfrn2 4815 dfdm4 4819 dfdmf 4820 eldmg 4822 dmun 4834 dm0rn0 4844 dmmrnm 4846 nfdm 4871 fliftf 5799 |
Copyright terms: Public domain | W3C validator |