All Questions
3
questions
4
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1
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Proof of Principle of Duality: Show that $φ$' is logically equivalent to $¬φ$
Could anyone check if my proof is ok/ suggest any improvement please? I couldn't find a way to utilise the induction hypothesis so I am not sure if this is ok.
Let $φ$ be a formula built up using ...
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3
votes
3
answers
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I want a clear explanation for the Principle of Strong Mathematical Induction
I understood the Principle of Mathematical Induction.
I know how to make a recursive definition.
But I am stuck with how the "Principle of Strong Mathematical Induction (- the Alternative Form)" ...
- 421
2
votes
1
answer
688
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Structural Induction, Propostitonal formulae problem
I am kind of overwhelmed by this question. Can anyone give me some hints about where to start?
Propositional formulae PF are inductively defined over
the Boolean constants B := {1, 0} (true and ...
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