different between superfalse vs supervaluationism

English

super- +? false

superfalse (not comparable)

(logic) In supervaluationism, necessarily false regardless of the values of variables.
"I am asleep and I am not asleep" is superfalse, because I can never be both.

supervaluation +? -ism

supervaluationism (uncountable)

(logic) A semantics for dealing with irreferential singular terms and vagueness.

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