a proper answer for t4
Merge branch 'master' of https://github.com/hakaru-dev/hakaru
deal with Pair
merge, partly by hand
Avoid "Wrong kind of parameters in piecewise"
Merge branch 'master' of github:hakaru-dev/hakaru
due to unsafeInterleaveIO used internally, make testS quiet.
partial implementation of Pair variables.  Remove hack.
Merge branch 'master' of https://github.com/hakaru-dev/hakaru
remove awful hack.  Further implementation of first-class pairs (not quite done).  Better comparison function.  Some code improvements.
Add test for simplifying function from Bool
Test cases produced by hangout
s/Bool_/Bool/
change how mkProb deals with +
Merge branch 'master' of https://github.com/hakaru-dev/hakaru
Make Typeable a superclass of MapleableType
Simplify functions from ()
Spell-check error message
Add swap_ macro to exchange the 2 parts of a pair
Make Bool comparable (an instance of Order_)