9 lines
238 B
Plaintext
9 lines
238 B
Plaintext
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Applications of CT
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-- class of structures which has finitely many elements is not
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definable in FO with equality.
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-- class of graphs G=(V,E,a,b) where there is a path from a to b is
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not definable in FO with signature <{a,b},{},{R(,)}>
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