8. Isar - A Language for Structured Proofs Flashcards

1
Q

What does a typical Isar proof look like?

A

proof

assume formula_0

have formula_1 by simp

….

have formula_n by blast

show formula_n+1 by …

qed

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2
Q

What is the proof pattern for case distinction?

A
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3
Q

What is the proof pattern for contradiction?

A
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4
Q

What is the proof pattern for iff?

A
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5
Q

What is the proof pattern for universal quantification?

A
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6
Q

What is the proof pattern for existential quantificiation?

A
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7
Q

What is the proof pattern for existential elimination?

A
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8
Q

What is the proof pattern for set equaility?

A
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9
Q

What is the proof pattern for subset?

A
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