|Similarity: conformity of one or more - but not all - properties of two or more objects.|
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Meaning of direction/Frege: from parallelism to a second line - analog: truth value from equality of two truth values.
Meaning/Dummett: understanding of meaning is not to be explained by equality of meaning.
Meaning theory/Dummett: must explain how language works. - It is not enough to list the meanings of words - ultimately it is an ability. - But still understanding: = knowing the meanings of all expressions.
Ursprünge der analytischen Philosophie Frankfurt 1992
Wahrheit Stuttgart 1982