Discrete Structures
Archer Sentences
Last Update: 27 September 2010
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Here are some more sentences for you to try to translate into FOL.
They will prove helpful later on in the semester.
Syntax & Semantics for Translation
Syntax | Semantics |
Archer(x) | x is an archer |
HasArrows(x) | x has arrows |
Target(x) | x is an target |
Hits(x,y) | x hits
y |
- Every archer has arrows.
- Some archers have no arrows.
- Every archer hits a target.
- Every target is hit by some archer.
- Every archer hits his own target.
- An alternative way to say the exact same thing:
- Every archer hits a different target.
- No archer hits more than one target.
Answers
(don't look until you've tried these!)
Text copyright © 2010 by William J. Rapaport
(rapaport@buffalo.edu)
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http://www.cse.buffalo.edu/~rapaport/archer.html-20100927