Show Tautology without Truth Table || Lesson 11 || Discrete Math & Graph Theory ||
Show Tautology without Truth Table
In this class, We discuss Show Tautology without Truth Table.
The reader should have prior knowledge of the list of equivalence formulas. Click here.
Example 1:
Show that (p ∧ q) -gt (p ∨ q) is a tautology.
We need to reduce the given proposition to true.
We use the equivalence formulas from our previous class.
Idea: ( p ∨ ¬p) = T
We need to reduce the proposition by ( p ∨ ¬p).
The below diagram shows the output.
Example 2:
Show that the given proposition is a tautology.
((p ∨ q) ∧ ¬(¬p ∧ (¬q ∨ ¬r))) ∨ (¬p ∧ ¬q) ∨ (¬p ∧ ¬r))
The below diagram shows the output.
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