Description: Convert between two kinds of structure closure. (Contributed by Mario Carneiro, 29-Aug-2015) (Proof shortened by AV, 12-Nov-2021)
| Ref | Expression | ||
|---|---|---|---|
| Hypothesis | structfun.1 | |- F Struct X | |
| Assertion | structfun | |- Fun `' `' F | 
| Step | Hyp | Ref | Expression | 
|---|---|---|---|
| 1 | structfun.1 | |- F Struct X | |
| 2 | structfung | |- ( F Struct X -> Fun `' `' F ) | |
| 3 | 1 2 | ax-mp | |- Fun `' `' F |