Re: [isabelle] Isabelle operator precedence
Am 06/11/2012 03:11, schrieb Christian Sternagel:
> Again, when both arguments have the same precedence it means that the operator
> is non-associative, try, e.g., to enter
> term "x ≠ x ≠ y"
> (Note that this only works with the xsymbol for not-equal, since the ASCII
> symbol ~= is declared as "infixl", i.e., left-associative infix operator.)
I noticed this too, when compiling the table of infix operators. This is weird
and should be cleared up. In fact, = and ~= and ≠ should all be non-associative
because there is no canonical orientation.
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