? Kotlin: Boolean і логічні вирази. Що таке булева алгебра? (Основи програмування)
https://khyzhun.medium.com/kotlin-boolean-%D1%96-%D0%BB%D0%BE%D0%B3%D1%96%D1%87%D0%BD%D1%96-%D0%B2%D0%B8%D1%80%D0%B0%D0%B7%D0%B8-%D1%89%D0%BE-%D1%82%D0%B0%D0%BA%D0%B5-%D0%B1%D1%83%D0%BB%D0%B5%D0%B2%D0%B0-%D0%B0%D0%BB%D0%B3%D0%B5%D0%B1%D1%80%D0%B0-%D0%BE%D1%81%D0%BD%D0%BE%D0%B2%D0%B8-%D0%BF%D1%80%D0%BE%D0%B3%D1%80%D0%B0%D0%BC%D1%83%D0%B2%D0%B0%D0%BD%D0%BD%D1%8F-f81456dae4a7
