Description: The value of the set exponentiation ( B ^m A ) is a subset of the class of functions from A to B . (Contributed by AV, 10-Aug-2024)
Ref | Expression | ||
---|---|---|---|
Assertion | mapssfset |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | mapfset | ||
2 | eqimss2 | ||
3 | 1 2 | syl | |
4 | reldmmap | ||
5 | 4 | ovprc1 | |
6 | 0ss | ||
7 | 5 6 | eqsstrdi | |
8 | 3 7 | pm2.61i |