Description: Equality theorem for the set of words, inference form. (Contributed by AV, 23-May-2021)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | wrdeqi.1 | |- S = T |
|
| Assertion | wrdeqi | |- Word S = Word T |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | wrdeqi.1 | |- S = T |
|
| 2 | wrdeq | |- ( S = T -> Word S = Word T ) |
|
| 3 | 1 2 | ax-mp | |- Word S = Word T |