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Mrs L-P just asked for an explanation of this joke, and is now asking if cosine is the category-theoretic dual of sine. #UnexpectedlyDifficultQuestion

@acciomath I can't think of a way in which it would be

@narain @christianp I see Unicode arrows

@acciomath @christianp *shrug* Some platform-dependent funkiness going on then

Accio Math!@acciomath@mathstodon.xyz@christianp Is it?