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Maude> ==========================================
unify in FOO : X:Big =? h(f(Y:Big, Z:Big)) .
Solution 1
X:Big --> h(1f)
Z:Big --> 1f
Y:Big --> 1f
Solution 2
X:Big --> h(#1:Small)
Z:Big --> #1:Small
Y:Big --> 1f
Solution 3
X:Big --> h(#1:Small)
Z:Big --> 1f
Y:Big --> #1:Small
==========================================
unify in FOO1 : X:Small =? f(Y:Big, Z:Big) .
Solution 1
X:Small --> #1:Small
Z:Big --> #1:Small
Y:Big --> 1f
Solution 2
X:Small --> #1:Small
Z:Big --> 1f
Y:Big --> #1:Small
Solution 3
X:Small --> f(#1:Small, #2:Small)
Z:Big --> #1:Small
Y:Big --> #2:Small
==========================================
unify in FOO2 : X:Small =? f(g(Y:Small), Z:Small) .
Solution 1
X:Small --> #1:Small
Z:Small --> #1:Small
Y:Small --> a
==========================================
unify in FOO3 : X:Small =? f(g(Y:Big), Z:Small) .
Solution 1
X:Small --> #1:Small
Z:Small --> #1:Small
Y:Big --> a
Solution 2
X:Small --> f(#2:Small, g(#1:Small))
Z:Small --> #2:Small
Y:Big --> #1:Small
==========================================
unify in FOO4 : X:Small =? f(g(Y:Big), Z:Small) .
Solution 1
X:Small --> #1:Small
Z:Small --> #1:Small
Y:Big --> g^999999(a)
==========================================
unify in FOO5 : X:Small =? f(g(Y:Big), Z:Small) .
Solution 1
X:Small --> #1:Small
Z:Small --> #1:Small
Y:Big --> g^999999(a)
Solution 2
X:Small --> f(#2:Small, g(#1:Small))
Z:Small --> #2:Small
Y:Big --> #1:Small
==========================================
unify in FOO6 : X:Big =? h(f(Y:Big, Y:Big)) .
Solution 1
X:Big --> h(1f)
Y:Big --> 1f
Maude> Bye.
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