Question 1
Argument: This new medicine should be approved because clinical trials show it's effective for 85% of patients.
Consider the assumption: 'Side effects are acceptable'
If we negate this assumption (assume the opposite), does it break the argument?
Yes — Unacceptable side effects would block approval regardless of efficacy
Negation test: If 'Side effects are NOT acceptable' then the argument 'fails'.
Negation test: If 'Side effects are NOT acceptable' then the argument 'fails'.