[Agda] EqReasoning example

Serge D. Mechveliani mechvel at botik.ru
Mon Mar 4 22:01:46 CET 2013

On Mon, Mar 04, 2013 at 06:24:38PM +0100, Andreas Abel wrote:
> Hello Sergei,
> you are simply using the wrong identifier for the equality chaining.
> The correct one is
>   \equiv\<      \>
> and you used s.th. like
>   \approx( ... )
> First, parentheses () cannot be part of an identifier, since they
> are special symbols in Agda (and any language I know).

Great! It works.
I must have recalled my adventure with  \equiv\< $ \>.
My emacs graphics shows very closely the above two kinds of parenthesis.
I rename the chaining one to  \equiv[ ],  so that it is graphically 
visible now.



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