Some
LSAT glossary · Reading Comprehension
Definition
An LSAT logical quantifier meaning "at least one; possibly all." "Some A are B" is true whenever the overlap between A and B contains one or more members — even if every A is B. Key inference rules: "All A are B" entails "Some A are B," and "Most A are B" entails "Some A are B," but "Some A are B" does not entail "Most" or "All." "No A are B" is the direct negation of "Some A are B."
Some in plain English
In everyday talk 'some cookies are burnt' hints 'not all' — but in LSAT logic, 'some' just means 'at least one, and possibly all.' So 'some A are B' is true the moment even one thing is both an A and a B, even if every single A happens to be B. That's why bigger claims flow DOWN to 'some' but not up: 'all A are B' and 'most A are B' each guarantee 'some A are B,' yet 'some' alone never promises 'most' or 'all.' And its true opposite is 'no A are B' — the instant that overlap has even one member, 'no' collapses and 'some' is true.
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Practice Some
The speakers disagree about whether which statement is true?
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