Proof Checker
Load an example:
Examples:
Proof Input
Note: Press Esc + Tab to escape the proof input.
Output
Result
Settings
Strictness:
Enter your proof in the input box below. As you type, a formatted version of your proof will appear on the right, along with a validation status beneath it.
To learn the syntax, explore the examples provided below or refer to the language reference.
Note:= i
instead of
(Refl) and = e
instead of (Repl).
| with x
) part of its line numbering, just like in
Logic Rondo.
'42
.
Load an example:
Examples:
Proof Input
Note: Press Esc + Tab to escape the proof input.
Output
Result
Settings