👉 In mathematics, a predeceaser is a number that is smaller than or equal to another number. For example, in the equation x = 5, if we let x be any real number greater than or equal to 5 (x >= 5), then x is a predeceaser of 5. The term "predeceaser" can also refer to a sequence or list that follows a specific rule. For example, in the sequence 1, 2,