In mathematics, an equation is a formula of the form A = B, where A and B are expressions that may contain one or several variables called unknowns, and "=" denotes the equality binary relation. The term "equation" may also refer to a relation between some variables that is presented as the equality of some expressions written in terms of those variables' values. #Glogster #Equations

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∃ binary relation 𝑹(a,b) ∃ its negation... • shapes, figures & forms

Recursive versus recursively enumerable binary relations - Springer

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Algebra~ 12 binary relations. WhyU

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Do You Consider Options Trading As A Binary Options Game? - http://tradingbinaryoptions.tv/options-trading-binary-options-game/

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Binary Relations : Taylor Marie Hill and Yana Shmaylova by Jean Francois Aloisi for Mojeh December 2012