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