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Mirrors > Home > NFE Home > Th. List > df-pss | Unicode version |
Description: Define proper subclass
relationship between two classes. Definition 5.9
of [TakeutiZaring] p. 17. For
example, ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Ref | Expression |
---|---|
df-pss |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cA |
. . 3
![]() ![]() | |
2 | cB |
. . 3
![]() ![]() | |
3 | 1, 2 | wpss 3258 |
. 2
![]() ![]() ![]() ![]() |
4 | 1, 2 | wss 3257 |
. . 3
![]() ![]() ![]() ![]() |
5 | 1, 2 | wne 2516 |
. . 3
![]() ![]() ![]() ![]() |
6 | 4, 5 | wa 358 |
. 2
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
7 | 3, 6 | wb 176 |
1
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Colors of variables: wff setvar class |
This definition is referenced by: dfpss2 3354 psseq1 3356 psseq2 3357 pssss 3364 pssne 3365 nssinpss 3487 0pss 3588 pssdif 3612 difsnpss 3851 sfinltfin 4535 |
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