👉 In the context of computer science, a predeceiver is a function that takes an input and returns another function. It's like a "predecessor" in programming terms - it's a function that has already been called before. For example: ```python def add(x, y): return x + y predeceiver = lambda x: lambda y: add(x, y) ``` In this case, `add` is the predeceiver for `lambda x: