Why do these terms exist otherwise if they serve no purpose?

Of course they have purposes, but that not does not speak to their utility in language analysis.

The purposes of these terms are many and varied. In my experience, their primary intended purpose is to form invalid arguments. (An invalid argument is an argument for which one cannot ascertain the truth of its conclusion.)

In reply to Re^3: Strong typing and Type Safety.A multilanguage approach by ikegami
in thread Strong typing and Type Safety.A multilanguage approach by nikosv

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