If B stands for $$‘>’, ‘C’$$ stands for $$‘≮’ , ‘D’$$ stands for $$‘=’, ‘E’$$ stands for $$‘≯’ , ‘F’$$ stands for $$‘<’$$ and $$‘x' , ‘y’$$ and $$‘z’$$ are real numbers, then (4$$x$$ F 5y) and (5y E 3z) $$\Rightarrow$$
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