Rule to solve syllogismsyllogism must fulfil the following rules.1. Every syllogism must contain three and only three terms, i.e., major, minor and middle terms.2. The conclusion should not contain the middle term.3. Every syllogism must consist of only three propositions.4. The middle term must be distributed at least once in the premises.5. If one premise is negative the conclusion must be negative.6. No conclusion follows if(a) both the premises are negative(b) both the premises are particular(c) the major premise is particular and minor premise is negative.7. If one premise is particular, the conclusion must be particular.8. No term can be distributed in the conclusion if it is not distributed in the premise.9. If both the premises are affirmative and universal, the conclusion would be affirmative anduniversal.10. If major premise be affirmative, the conclusion must be particular.