Examples of Non-Sahlqvist Formulas
- This is the McKinsey formula; it does not have a first-order frame condition.
- The Löb axiom is not Sahlqvist; again, it does not have a first-order frame condition.
- The conjunction of the McKinsey formula and the (4) axiom has a first-order frame condition but is not equivalent to any Sahlqvist formula.
Read more about this topic: Sahlqvist Formula
Famous quotes containing the words examples of, examples and/or formulas:
“Histories are more full of examples of the fidelity of dogs than of friends.”
—Alexander Pope (1688–1744)
“Histories are more full of examples of the fidelity of dogs than of friends.”
—Alexander Pope (1688–1744)
“That’s the great danger of sectarian opinions, they always accept the formulas of past events as useful for the measurement of future events and they never are, if you have high standards of accuracy.”
—John Dos Passos (1896–1970)
Related Phrases
Related Words