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Mirrors > Home > ILE Home > Th. List > df-nfc | 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 2227 |
. 2
![]() ![]() ![]() ![]() |
4 | vy |
. . . . . 6
![]() ![]() | |
5 | 4 | cv 1298 |
. . . . 5
![]() ![]() |
6 | 5, 2 | wcel 1448 |
. . . 4
![]() ![]() ![]() ![]() |
7 | 6, 1 | wnf 1404 |
. . 3
![]() ![]() ![]() ![]() ![]() ![]() |
8 | 7, 4 | wal 1297 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
9 | 3, 8 | wb 104 |
1
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff set class |
This definition is referenced by: nfci 2230 nfcr 2232 nfcd 2235 nfceqi 2236 nfceqdf 2239 nfnfc1 2243 nfnfc 2247 drnfc1 2257 drnfc2 2258 dfnfc2 3701 |
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