Definition: Eliminability is a concept in mathematical logic that refers to the property of a formula or expression, where it can be expressed without further restrictions. In other words, an expression is eliminable if it cannot be expressed using only the symbols from the language of the calculus and its axioms. For example, consider the following two expressions: 1. \(x + y\) 2. \(\frac{a}{b}\) Both expressions can be written in terms of the operations addition and division
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