{"id":"generator-boolean-counting-pattern","text":"The repo uses `sum(predicate(x) for x in iterable)` as an idiom for counting matches, exploiting Python's `True == 1` / `False == 0` arithmetic to avoid materializing a filtered list.","truth_value":"IN","source":"entries/2026/06/06/determine-if-string-halves-are-alike-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"generator-boolean-counting-pattern","truth_value":"IN","reason":"premise"}]}}