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$\begingroup$ Excellent, exactly what I needed, thank you. $\endgroup$
– burek
Commented Mar 15, 2022 at 10:35
1

$\begingroup$ You don't need the @ on that last line, exact nat.lt_wf.fix Qstep (f a) a rfl works too. $\endgroup$
– Eric ♦
Commented Mar 17, 2022 at 12:02
$\begingroup$ Thanks for the tip! $\endgroup$
– Andrej Bauer
Commented Mar 17, 2022 at 12:39

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Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>
MathJax equations $\sin^2 \theta$

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