t;good&quot; of signs and the &quot;good&quot; of languages,
specifically, what is the use of formal expressions in a formal language,
and what is the basis of comparative judgments among signs and languages?

Expressed in terms of a series of practical &quot;how to&quot; questions?

1.  With regard to expressions in a given language:

    a.  How to evaluate an expression in reference to a possible object?
    b.  How to compare expressions with reference to a specified object?
    c.  How to clarify expre