Question

What is immediate inference and what are its different forms?

Hint:

Immediate inference involves drawing conclusions directly from a single proposition through various logical forms.

Answer 1

Immediate Inference:
Immediate inference is a logical process in which a conclusion is drawn from a single premise without the need for additional premises. The forms of immediate inference are:

Conversion: Involves swapping the subject and predicate of the proposition.
Obversion: Involves changing the quality (affirmative to negative or vice versa) and replacing the predicate with its complement.
Contradiction: Involves asserting the opposite truth value of the proposition.
Contraposition: Involves switching the subject and predicate and replacing both with their complements.

Conclusion: Immediate inference is the process by which conclusions are drawn directly from a single premise, without additional premises. Different forms like conversion, obversion, contradiction, and contraposition allow for different kinds of inferences from a given proposition.