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| Mirrors > Home > MPE Home > Th. List > fssresd | Structured version Visualization version Unicode version | ||
| Description: Restriction of a function with a subclass of its domain, deduction form. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| fssresd.1 |
|
| fssresd.2 |
|
| Ref | Expression |
|---|---|
| fssresd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fssresd.1 |
. 2
| |
| 2 | fssresd.2 |
. 2
| |
| 3 | fssres 6070 |
. 2
| |
| 4 | 1, 2, 3 | syl2anc 693 |
1
|
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