Description: A terminal object is an object. (Contributed by AV, 18-Apr-2020)
Ref | Expression | ||
---|---|---|---|
Assertion | termoo | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid | |
|
2 | eqid | |
|
3 | id | |
|
4 | 1 2 3 | istermoi | |
5 | 4 | simpld | |
6 | 5 | ex | |