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Mirrors > Home > MPE Home > Th. List > df-en | Structured version Visualization version Unicode version |
Description: Define the equinumerosity
relation. Definition of [Enderton] p. 129.
We define ![]() |
Ref | Expression |
---|---|
df-en |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cen 7597 |
. 2
![]() ![]() | |
2 | vx |
. . . . . 6
![]() ![]() | |
3 | 2 | cv 1454 |
. . . . 5
![]() ![]() |
4 | vy |
. . . . . 6
![]() ![]() | |
5 | 4 | cv 1454 |
. . . . 5
![]() ![]() |
6 | vf |
. . . . . 6
![]() ![]() | |
7 | 6 | cv 1454 |
. . . . 5
![]() ![]() |
8 | 3, 5, 7 | wf1o 5604 |
. . . 4
![]() ![]() ![]() ![]() ![]() ![]() |
9 | 8, 6 | wex 1674 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
10 | 9, 2, 4 | copab 4476 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
11 | 1, 10 | wceq 1455 |
1
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff setvar class |
This definition is referenced by: relen 7605 bren 7609 enssdom 7625 |
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