The four combinations of {true, false} and {&&, ||} give rise to four different semigroups: https://gist.github.com/fthomas/5d13d36e8c6ff64685df … /cc @noelwelsh
@noelwelsh @fst9000 that makes sense. I think of the underlying math as being structurally typed.
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@avibryant@fst9000 Agreed.Thanks. Twitter will use this to make your timeline better. UndoUndo
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