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AI-generatedError 2000: Invalid function name - REPLACE statement visibility across sessions
When defining a function whose name contains a space or punctuation, Dyalog APL raises Error 2000: Invalid function name. This error highlights the language’s strict naming rules, which must be respected even when a function is later redefined. During a zero‑downtime migration of a small application, the REPLACE statement is used to swap a function’s definit
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