Theorems and conjectures about Integermania can be submitted to Steve Wilson for posting on this page. Warning: False conjectures could be bumped off this page by true conjectures!
Definition 1: The exquisiteness of a solution to a Integermania problem is the highest level operation used in its construction, plus a possible surcharge, as given by the table of levels of exquisiteness, but the table is not repeated here.
Definition 2: The exquisiteness of a set of numbers A at level L is
the largest positive integer nL having the property that for every
positive integer less than or equal to nL there exists a solution to the
Integermania problem using set A with exquisiteness level less than L+1. Notationally, we can write:
Exq(A,L) = nL, or
Exq(A) = {n1,n2,...,nL,...}.
See Exquiteness of Sets for conjectures about different Intergermania problems.
Theorem 1: In an Integermania problem with n values and k
available binary operations, where each value is used exactly once, and values
are combined by using only the available binary operations, there are at most
positive integers which can be created. See discussion
and proof.
Theorem 2: In an Integermania problem where set A has n values, the level 1 exquisiteness of A will be less than or equal to 1 when n = 1, and less than or equal to 3 when n = 2. See proof and comments about larger values of n.
Theorem 3: There exists an Integermania solution, without rounding, for every integer n and every non-empty set of integers A. See proof and comments.