Assumption Validity Check
Assumption Validity Check problems present a statement along with an assumption. You must determine whether the assumption is valid (logically sound), invalid (logically flawed), or questionable (partially true but with exceptions).
What You'll Learn
Introduction to Assumption Validity Check
Assumption Validity Check problems present a statement along with an assumption. You must determine whether the assumption is valid (logically sound), invalid (logically flawed), or questionable (partially true but with exceptions).
Prerequisites
How to Solve Assumption Validity Check Problems
Step 1: Read the statement and identify the main argument
Step 2: Read the given assumption carefully
Step 3: Ask: Is this assumption always true in the context of the argument?
Step 4: Consider if there are any exceptions or counterexamples
Step 5: If the assumption is always true and necessary → Valid
Step 6: If the assumption is clearly false or contradicts facts → Invalid
Step 7: If the assumption has some truth but exceptions exist → Questionable
Step 8: Select the appropriate validity classification
Example Problem
Example: Statement: 'Since it rained yesterday, the cricket match must have been cancelled.' Assumption: 'Rain always leads to cricket match cancellation.' Is this assumption valid? Solution: Step 1: Statement argues that rain caused cancellation Step 2: Assumption claims rain ALWAYS leads to cancellation Step 3: Is this always true? No - matches can continue in light rain or with covers Step 4: Counterexamples exist Step 5: Therefore, the assumption is invalid Answer: Invalid
Pro Tips & Tricks
- Absolute terms (always, never, all, none) often indicate questionable or invalid assumptions
- Context matters - an assumption may be valid in one context but not another
- Use counterexamples to test validity
- Distinguish between 'valid' (logically sound) and 'true' (factually correct)
- An assumption can be valid even if not explicitly stated
- Check if the assumption is necessary for the argument
Shortcut Methods to Solve Faster
Common Mistakes to Avoid
Practice Worksheets
Practice makes perfect! Work through these worksheets to master Assumption Validity Check. Each worksheet contains 20 questions with detailed explanations. Start from Worksheet 1 and progress through increasing difficulty levels.
Exam Importance
Assumption Validity Check is an important topic for various competitive exams. Here's how frequently it appears:
Ready to Master Assumption Validity Check?
Start with Worksheet 1 and work your way up to expert level! Each worksheet includes: