Predicate transformer semantics: Difference between revisions

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Jdinolt (talk | contribs)
m minor grammatical fixup
Jdinolt (talk | contribs)
m small clarification in example
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This gives a predicate that is a copy of ''R'' with the value of ''x'' replaced by ''E''.
 
An example of a valid calculation of ''wp'' for assignments with integer valued variables ''x'' and ''y'' is:
 
:<math>wp(x := y - 5, x > 10) = y > 15 </math>