![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > df-nfc | Structured version Visualization version Unicode version |
Description: Define the not-free
predicate for classes. This is read "![]() ![]() ![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
df-nfc |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | vx |
. . 3
![]() ![]() | |
2 | cA |
. . 3
![]() ![]() | |
3 | 1, 2 | wnfc 2599 |
. 2
![]() ![]() ![]() ![]() |
4 | vy |
. . . . . 6
![]() ![]() | |
5 | 4 | cv 1451 |
. . . . 5
![]() ![]() |
6 | 5, 2 | wcel 1904 |
. . . 4
![]() ![]() ![]() ![]() |
7 | 6, 1 | wnf 1675 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() |
8 | 7, 4 | wal 1450 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
9 | 3, 8 | wb 189 |
1
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff setvar class |
This definition is referenced by: nfci 2602 nfcr 2604 nfcd 2607 nfceqdf 2608 nfnfc1 2615 nfnfc 2621 nfnfcALT 2622 drnfc1 2629 drnfc2 2630 dfnfc2 4208 nfnid 4629 bj-nfnfc 31530 bj-nfcf 31595 |
Copyright terms: Public domain | W3C validator |