sentence
Sentence
2002-08-28 23:22:32
2006-08-16 18:01:50
Definition
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A sentence is a formula with no free variables.
Simple examples include:
$$\forall x\exists y [x<y]$$
or
$$\exists z [z+7-43=0]$$
However the following formula is not a sentence:
$$x+2=3$$