1. Existence theoremIn mathematics, an existence theorem is a theorem with a statement beginning 'there exist(s) .. ', or more generally 'for all x, y, ... there exist(s) ...'. That is, in more formal terms of symbolic logic, it is a theorem with a statement involving the existential quantifier. Many such theorems will not do so explicitly, as usually stated in standard mathematical language. For example, the statement that the sine function is continuous; or any theorem written in big O notation.
Read “Existence theorem” on English Wikipedia
Read “存在定理” on Japanese Wikipedia
Read “Existence theorem” on DBpedia
Read “Existence theorem” on English Wikipedia
Read “存在定理” on Japanese Wikipedia
Read “Existence theorem” on DBpedia
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