Question: 1. (3 marks) Consier the following assertions about a particular creature (that happens to be a unicorn) If the unicorn is mythical then it is

1. (3 marks) Consier the following assertions about a particular creature

1. (3 marks) Consier the following assertions about a particular creature (that happens to be a unicorn) If the unicorn is mythical then it is immortal If it is not mythical then it is not immortal and it is a mammal. If it is immortal or a mammal then it has a horn. It is magical only if it has a horn We'll represent this information in propositional logic, with the following symbols My the creature is mythical Im the creature is immortal Ma the creature is a mammal Ho the creature has a horn Mg - the creature is a magical Then each sentence above can be represented as follows MyIm (Im V Ma)Ho (a) Show, using truth tables, whether or not Ho is entailed by the set of formulas, and whether My is entiled. You can use Figure 7.9 in the text as a guide (b) Show, using resolution, whether Mg is entailed

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