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    I'm a little stumped here. give us a hand?

    iv. The following arguments are all invalid. Prove this by finding, in each case, an argument with the same logical form whose premises are known to be true and whose conclusion is known to be false (the ‘counterexample technique’). (8 marks)

    a. Most logicians are philosophers; few philosophers are unwise; so at least some logicians are wise.

    b. Few Sicilians approve of abortion; many atheists approve of abortion; so few atheists are Sicilian.

    c. Some nerds are trainspotters; some nerds wear parkas; so some trainspotters wear parkas.

    d. Many ordinary people are corrupt; all politicians are ordinary people; so some politicians are corrupt.


    need to hand this in by 5pm so all help much appreciated. thanks.
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