6.0 macs:Mac OS X10.4.1 SntP 10 ~Adjoins(y, y) ; You can make this a sentence by adding a single ; quantifier (and variable). (Tet(w) $ Large(w)) ; Here, too. Tet(a) $ Large(w) ; Since you can't add parentheses, you'll have to ; put the quantifier in the right place. Tet(w) $ Large(w) ; How many quantifiers do you need here? ; Remember, you can't add parentheses. Large(x) $ ~Larger(y, x) @x y ((Cube(x) & Cube(y)) $ ~Larger(x, y)) @ Cube(a) ; Remember, you are only to add quantifiers or ; variables or both. No changing the "a". The ; resulting sentence is odd, but we'll explain ; what it means later. @x Tet(y) $ Small(x) ; The quantifier here is not doing anything. It ; doesn't bind the y (wrong variable) and it ; doesn't bind the x (wrong scope). ((Tet(x) & Tet(y)) $ Between(z, x, y)) (Tet(x) & Large(x)) & LeftOf(x, y) s=126732;