Statements: When it rains, usually X does not go out. X has gone out.Conclusions: I. It is not raining. II. X has some urgent business to transact.
Statements: H * D, D # R, R © N Conclusions: I. N * H II. N $ H
Statements: G - H, K × L, L - G
Conclusions:
I. G ÷ K
II. L - H