Question

Use the predicates: In (x, y), Borders (x, y) and Country (x) whose arguments are geographical...

Use the predicates:

In (x, y), Borders (x, y) and Country (x)

whose arguments are geographical regions, along with constant symbols for various regions.

In (x,y) -> x is in y …

In (Houston, Texas)  Houston is in Texas
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Use the predicates:

In (x, y), Borders (x, y) and Country (x)

whose arguments are geographical regions, along with constant symbols for various regions.

Example. In (x,y) -> x is in y …

In (Houston, Texas) -> Houston is in Texas

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Question #2 There is a country that borders both Germany and Poland

a.∃ c Country(c) ᴧ Border(c, Germany) ᴧ Border (c, Poland)

b.∃ c Country(c) => [Border(c, Germany) ᴧ Border(c, Poland)]

c.∃ c Border(Country(c), Germany ᴧ Poland)

a, b, c each have an answer

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