On 16/01/2017 10:23, Andrew Parsloe wrote:
> I'm not qualified to argue about the use of \mode_if_inner:TF beyond
> saying that it has correctly worked to date.

Any apparent correspondence between inner and outer math and
displaystyle and textstyle is more or less accidental.




\relax\ifinner\typeout{#1 inner}\else\typeout{#1 outer}\fi


\[\test{[} \left(\test{[2}\right) \]

\test{eqnarray} &=&0



all but the first sum is set in display math mode but all but the second
have ifinner true.

$ inner
[ outer
[2 inner
eqnarray inner
align inner
align inner



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