1,045 prompts matching "Checking an inverse by working the operation both ways"
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Learn: The conditional statement, if p then q
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Worked Example: The truth table for the conditional
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Quiz: Why a conditional with a false antecedent counts as true
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Spot My Mistake: The contrapositive of a conditional
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WAEC Prep: Why a conditional and its contrapositive are equivalent
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Final Revision: A conditional statement set in an everyday situation
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Worked Example: The truth table for the biconditional
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Quiz: The biconditional as two conditionals taken together
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Explain Back: Showing two statements equivalent by truth table
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Spot My Mistake: De Morgan's laws in logic
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WAEC Prep: The double negation law
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Common Mistakes: Simplifying a compound statement using the laws
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Final Revision: A biconditional used in a mathematical definition
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Spot My Mistake: The law of the excluded middle
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Common Mistakes: Deciding between tautology, contradiction and contingency
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Learn: What makes an argument valid
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Worked Example: Premises and conclusion
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Final Revision: An argument written in words and tested for validity
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Learn: Arranging five different books on a shelf
You are my personal SS2 Further Mathematics tutor. Teach me arranging five different books
Worked Example: Arranging r of n objects in a line
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