FunErrTest.idr:35:10:When checking right hand side of badCadr1: When checking argument cons1 to function FunErrTest.cadr: Could not prove that [] has at least two elements. FunErrTest.idr:38:10:When checking right hand side of badCadr2: When checking argument cons2 to function FunErrTest.cadr: Could not prove that tail [1] has at least two elements.