If the proposition ‘Some fishes are not egg-laying animals’ is given as true, then which of the following propositions could be immediately inferred to be false?
A. All fishes are egg-laying animals.
B. Some fishes are egg-laying animals.
C. No fishes are egg-laying animals.
D. Some egg-laying animals are fishes.
Answer:A
If the proposition ‘Some fishes are not egg-laying animals’ is given as true, then which of the following propositions could be immediately inferred to be false?
A. All fishes are egg-laying animals. B. Some fishes are egg-laying animals. C. No fishes are egg-laying animals. D. Some egg-laying animals are fishes.