1, 2, 3, 4, 5, 6 | 7: 1, 2

7.3: 0, 1, 2, 3, S, E, A

7: 4, 5, 6, 7, 8 | 8, app

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Phi 270
Fall 2013
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7.3.s. Summary

1

The quantifier phrases not every and not only can be taken to mark negations of generalizations; they therefore cite the existence of counterexamples. Similarly, though less naturally, words like some and a can be taken to mark the negations of generalizations stated with no (although a may sometimes be used to the same effect as every).

2

Although some sentences containing both quantifier phrases and words marking connectives cannot be analyzed as truth-functional compounds, many can. It is clear how to do this when the sign for a connective is used to combine two separate generalizations, but the analysis may be more problematic in other cases. For example, every X and Y can be understood to indicate a conjunction of generalizations, but the same is true of no X or Y even though the connective is different. A claim of either sort can be analyzed as a single generalization, but its restricting predicate must then use disjunction (i.e., it amounts to the quantifier phrase everything that is X or Y). This recalls, and can be traced to, the properties of conjoined conditionals with a common consequent. Something similar happens when or appears in the quantified predicate of a negative generalization.

3

In sentences where any and every are alternatives that convey different meanings, the use of any can be understood to indicate a generalization whose scope is wider than some other operator, and the use of every will indicate a generalization whose scope is narrower than that same operator.

Glen Helman 01 Aug 2013