tcfail056.hs:1: Duplicate or overlapping instance declarations
    Class `PrelBase.Eq' type `Foo'
	at tcfail056.hs:6 and tcfail056.hs:10
 
tcfail056.hs:1: Duplicate or overlapping instance declarations
    Class `PrelBase.Eq' type `Foo'
	at tcfail056.hs:6 and tcfail056.hs:10
 
tcfail056.hs:10: Class `PrelBase.Eq' does not have a method `<='


Compilation had errors