Description: The set of words over a set is a set, inference form. (Contributed by AV, 23-May-2021)
Ref | Expression | ||
---|---|---|---|
Hypothesis | wrdexi.1 | |
|
Assertion | wrdexi | |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | wrdexi.1 | |
|
2 | wrdexg | |
|
3 | 1 2 | ax-mp | |