Reflexive Property of Equality

The Reflexive Property of Equality simply states that any value is equal to itself. More precisely:

a = a

This property seems trivial, but it is surprisingly useful. For example, this property is used to prove a theorem about congruent triangles.

a is an expression, so it can be a value, variable, an operation, among others.

Examples

5 = 5

3 + 6 = 3 + 6

x / 4 = x / 4

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