Math Investigation eTwinning. Mission: Infinity...Affairs! Volume: Infinity | Page 32

The part of a conditional after If and before then./HYPOTHESIS
Straight up and down. As an example, we can consider a wall./VERTICAL
The first mathematician to realize that there are different kinds, different sizes of infinity./GEORGCANTOR
Describes a set which does not have an infinite number of elements.
That is, a set which can have its elements counted using natural numbers. Formally, a set is finite if its
cardinality is a natural number./FINITY
A mark or character used as a conventional representation of an object, function, or process, e.g. the letter
or letters standing for a chemical element or a character in musical notation./SYMBOL
Writing an integer as a product of powers of prime numbers./PRIMEFACTOR
Describes a set which contains more elements than the set of integers. Formally, an unaccountably infinite
set is an infinite set that cannot have its elements put into one-to-one correspondence with the set of
integers. For example, the set of real numbers is unaccountably infinite./UNCOUNTABLE
Think or assume that something is true or probable./SUPPOSE
A logical incompatibility between two or more propositions./CONTRADICTION
One of a set of explicit or understood regulations or principles governing a particular area of activity./RULE
A person staying at a hotel./QUEST
A network of lines that cross each other to form a series of squares or rectangles./GRID
Quick to understand, learn, and apply ideas; intelligent./CLEVER
A function between the elements of two sets, where every element of one set is paired with exactly one
element of the other set, and every element of the other set is paired with exactly one element of the first
set. There are no unpaired elements./BIJECTION
Containing nothing; not filled or occupied./EMPTY
An inquiry starting from given conditions to investigate or demonstrate a fact, result, or law./PROBLEM
Find all solutions to an equation, inequality, or a system of equations and/or inequalities./SOLVE
An integer that is not a multiple of 2./ODD
Any integer which divides evenly into a given integer./FACTOR
x in the expression ax./EXPONENT
A seemingly absurd or contradictory statement or proposition which when investigated may prove to be
well founded or true./PARADOX
A part or division of a building enclosed by w