Description: Two ways of saying a function is a mapping of A to itself. (Contributed by AV, 27-Jan-2024)
Ref | Expression | ||
---|---|---|---|
Hypotheses | efmndbas.g | No typesetting found for |- G = ( EndoFMnd ` A ) with typecode |- | |
efmndbas.b | |||
Assertion | elefmndbas |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | efmndbas.g | Could not format G = ( EndoFMnd ` A ) : No typesetting found for |- G = ( EndoFMnd ` A ) with typecode |- | |
2 | efmndbas.b | ||
3 | 1 2 | efmndbas | |
4 | 3 | eleq2i | |
5 | id | ||
6 | 5 5 | elmapd | |
7 | 4 6 | syl5bb |