Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > fssd | Structured version Visualization version Unicode version |
Description: Expanding the codomain of a mapping, deduction form. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
Ref | Expression |
---|---|
fssd.f | |
fssd.b |
Ref | Expression |
---|---|
fssd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fssd.f | . 2 | |
2 | fssd.b | . 2 | |
3 | fss 6056 | . 2 | |
4 | 1, 2, 3 | syl2anc 693 | 1 |
Copyright terms: Public domain | W3C validator |