![]() |
Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > ILE Home > Th. List > df-ple | Unicode version |
Description: Define "less than or
equal to" ordering extractor for posets and related
structures. We use ;![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
df-ple |
![]() ![]() ![]() ![]() ![]() |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cple 12535 |
. 2
![]() ![]() | |
2 | c1 7809 |
. . . 4
![]() ![]() | |
3 | cc0 7808 |
. . . 4
![]() ![]() | |
4 | 2, 3 | cdc 9380 |
. . 3
![]() ![]() ![]() |
5 | 4 | cslot 12453 |
. 2
![]() ![]() ![]() |
6 | 1, 5 | wceq 1353 |
1
![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff set class |
This definition is referenced by: plendx 12647 pleid 12648 pleslid 12649 |
Copyright terms: Public domain | W3C validator |