Exercise-ch2: Difference between revisions

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<quiz>
<quiz>
{Klick on the expressions that are well-formed formulae.
{Klick on the expressions that are well-formed formulae.}
| type="()"}
- '''hobbit'''
- '''hobbit'''
+ &forall; ''x'' ('''hobbit'''(''x'') &sup; x = '''gandalf''')
+ &forall; ''x'' ('''hobbit'''(''x'') &sup; x = '''gandalf''')


</quiz>
</quiz>

Revision as of 18:31, 15 March 2013

Additional Exercises for Chapter 2: Predicate Logic

Formulae

∀ ∃ ∧ ∨ ⊂ ⊃ ¬

For the following exercises we use names and properties from the The Lord of the Rings novels.

Names: frodo, sam, gandalf, aragorn
Predicates: hobbit

  

Klick on the expressions that are well-formed formulae.

hobbit
x (hobbit(x) ⊃ x = gandalf)