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[6] [7] Some high-school-level discrete mathematics textbooks have appeared as well. [8] At this level, discrete mathematics is sometimes seen as a preparatory course, like precalculus in this respect. [9] The Fulkerson Prize is awarded for outstanding papers in discrete mathematics.
Algebra is the branch of mathematics that studies certain abstract systems, known as algebraic structures, and the manipulation of expressions within those systems. It is a generalization of arithmetic that introduces variables and algebraic operations other than the standard arithmetic operations, such as addition and multiplication.
The designation E 7 comes from the Cartan–Killing classification of the complex simple Lie algebras, which fall into four infinite series labeled A n, B n, C n, D n, and five exceptional cases labeled E 6, E 7, E 8, F 4, and G 2. The E 7 algebra is thus one of the five exceptional cases.