Contraposing propositions

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Reference no: EM1386368

Contrapose the following propositions and state whether the converse is logically equivalent or not logically equivalent to original.

a. Some boats without sails are not crafts that are unsinkable.

b. Some unsuccessful people are not incompetent people

c. Some flammable objects are objects that are unsafe for babies to play

Reference no: EM1386368

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