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Language as calculus/Hintikka: language as a calculus allows model theory.
Language as a universal medium/Hintikka: its representative is not entirely completed by semantic questions. According to him, they only cannot be represented in the language. Many philosophers today mingle the two conceptions without knowing where they come from.
Jaakko and Merrill B. Hintikka
The Logic of Epistemology and the Epistemology of Logic Dordrecht 1989
J. Hintikka/M. B. Hintikka
Untersuchungen zu Wittgenstein Frankfurt 1996