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authordhuth <derickhuth@gmail.com>2014-10-06 11:56:47 -0600
committerdhuth <derickhuth@gmail.com>2014-10-06 11:56:47 -0600
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+symbolic N,M,k;
+{ [i,j] -> [] : 0 <= i <= M and 0 <= j <= N and 2i+j = k
+ and not ( exists [i2,j2] :
+ 0 <= i2 <= M and 0 <= j2 <= N
+ and 2i2+j2 = k
+ and i < i2 ) };
+{ [i,j] -> [] : 0 <= i <= M and 0 <= j <= N and 2i+j = k
+ and not ( i < M && 2i-2 <= k &&
+ N-k <= 2M
+ && ( N-k < k or N <= 2k && (exists a : k = 2 a)
+ ))};