Two are true, one is not
Read exercise and reference answers
- Questions
- False statement
- 'Some S is not P' reverses safely
- Statements
- 'No S is P' reverses safely
- 'Some S is P' reverses safely
- 'Some S is not P' reverses safely
- False statement
- O is the universal negative
- Statements
- O is the universal negative
- A is the universal affirmative
- O is the particular negative
- False statement
- Induction guarantees a true conclusion
- Statements
- Deduction draws out what premises contain
- Induction guarantees a true conclusion
- Induction generalises beyond the evidence
The false line always over-reverses a statement. Source: Logic: Deductive and Inductive, Carveth Read (1898), public domain.