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Tags
#artificial-intelligence #geb #goedel-escher-bach #hofstadter #propositional-calculus
Question
Contrapositive Rule: [...]
Answer
\(< x \supset y >\) and \(< \neg x \supset \neg y >\) are interchangeable.

Tags
#artificial-intelligence #geb #goedel-escher-bach #hofstadter #propositional-calculus
Question
Contrapositive Rule: [...]
Answer
?

Tags
#artificial-intelligence #geb #goedel-escher-bach #hofstadter #propositional-calculus
Question
Contrapositive Rule: [...]
Answer
\(< x \supset y >\) and \(< \neg x \supset \neg y >\) are interchangeable.
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Contrapositive Rule: \(< x \supset y >\) and \(< \neg x \supset \neg y >\) are interchangeable.

Original toplevel document (pdf)

owner: piotr.wasik - (no access) - Douglas Hofstadter "Goedel, Escher, Bach", p187

Summary

statusnot learnedmeasured difficulty37% [default]last interval [days]               
repetition number in this series0memorised on               scheduled repetition               
scheduled repetition interval               last repetition or drill

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