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In universal algebra and mathematical logic, a term algebra is a freely generated algebraic structure over a given signature. [ 1 ] [ 2 ] For example, in a signature consisting of a single binary operation , the term algebra over a set X of variables is exactly the free magma generated by X .
As this example shows, when like terms exist in an expression, they may be combined by adding or subtracting (whatever the expression indicates) the coefficients, and maintaining the common factor of both terms. Such combination is called combining like terms or collecting like terms, and it is an important tool used for solving equations.
An algebraic equation is an equation involving polynomials, for which algebraic expressions may be solutions. If you restrict your set of constants to be numbers, any algebraic expression can be called an arithmetic expression. However, algebraic expressions can be used on more abstract objects such as in Abstract algebra.
A term is a constant or the product of a constant and one or more variables. Some examples include ,,, The constant of the product is called the coefficient. Terms that are either constants or have the same variables raised to the same powers are called like terms. If there are like terms in an expression, one can simplify the expression by ...
An algebraic structure in a variety may be understood as the quotient algebra of term algebra (also called "absolutely free algebra") divided by the equivalence relations generated by a set of identities. So, a collection of functions with given signatures generate a free algebra, the term algebra T.
The number 3 is a constant term. [1] After like terms are combined, an algebraic expression will have at most one constant term. Thus, it is common to speak of the quadratic polynomial + +, where is the variable, as having a constant term of .
Note that many of the terms are completely rigorous in context. almost all A shorthand term for "all except for a set of measure zero", when there is a measure to speak of. For example, "almost all real numbers are transcendental" because the algebraic real numbers form a countable subset of the real numbers with measure zero.
Addend, or term, an operand to the addition operator Term of a summation, a polynomial, or a series, a special case of a summand; Term algebra, a freely generated algebraic structure; Term logic, an approach to logic that began with Aristotle and that was dominant until the advent of modern predicate logic; Term symbol, a concept in quantum ...