ExerciseFOModels-c
Here are examples of some relations:
son-of-someone: {<x,y> | x is the son of y} = {<Tom, Paul>, <Tom, Alice>}
father-of-someone: {<x, y> | x is the father of y} ={<Paul, Tom>, <Paul,Lisa>}
daughter-of-someone: {<x, y> | x is the daughter of y} = {<Lisa, Paul>, <Lisa, Alice>}
mother-of-someone: {<x, y> | x is the mother of y} ={<Alice, Lisa>, <Alice, Paul>}
brother-of-someone: {<x, y> | x is the brother of y} = {<Tom, Lisa>}
sister-of-someone: is the sister of y} = {<Lisa, Tom>}
dog-of-someone: {<x, y> | x is the dog of y} = {<Walter, Alice>, <Walter, Paul>, <Walter, Tom>, <Walter, Lisa>}
married-to-eachother: {<x, y> | x is married to y} = {<Alice, Paul>, <Paul, Alice}
enjoy-watching-football-together: {<x, y> | x enjoys watching football with y} = {<Alice, Paul>, <Paul, Alice>, <Alice, Lisa>, <Lisa, Alice>, <Alice, Tom>, <Tom, Alice>, <Paul, Lisa>, <Lisa, Paul>, <Paul, Tom>, <Tom, Paul>, <Tom, Lisa>, <Lisa, Tom>}
- the current exercise
- the exercises for chapter 2
- the material for chapter 2
- the overview over all chapters