Get ready Part 23

Algebra Level 2

Let S S be the set of ordered triples ( a , b , c ) (a,b,c) of distinct elements of a finite set A A . Suppose that

  1. ( a , b , c ) S (a,b,c) \in S if and only if ( b , c , a ) S (b,c,a) \in S ;

  2. ( a , b , c ) S (a,b,c) \in S if and only if ( c , b , a ) S (c,b,a) \notin S ;

  3. ( a , b , c ) (a,b,c) and ( c , d , a ) (c,d,a) are both in S if and only if ( b , c , d ) (b,c,d) and ( d , a , b ) (d,a,b) are both in S S .

Is there exists a one-to-one function g g from A A to R \mathbb{R} such that g ( a ) < g ( b ) < g ( c ) g(a)<g(b)<g(c) implies ( a , b , c ) S (a,b,c) \in S ?

Yes No

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