Exercise algebra.equations.quadratic.no-abc
Description
solve a quadratic equation without abc-formula
Firsts
Rule topform.exit Location [1] Term "Just (TCon logic1.or [TCon relation1.eq [TVar \"x\",TNum 0],TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TNum 4]]])" Focus "Just (TCon relation1.eq [TVar \"x\",TCon arith1.unary_minus [TNum 4]])" Environment