TY - JOUR ID - TI - Algebra with Some of Their Properties AU - Rusul Abd Al_salam Ali AU - Hassan Hussien Ebrahim PY - 2020 VL - 33 IS - 2 SP - 72 EP - 80 JO - Ibn Al-Haitham Journal For Pure and Applied Sciences مجلة ابن الهيثم للعلوم الصرفة والتطبيقية SN - 16094042 25213407 AB - The objective of this paper is, firstly, we study a new concept noted by λ–algebra anddiscuss the properties of this concept. Secondly, we introduce a new concept related to theλ–algebra such as smallest λ–algebra. Thirdly, we introduce the notion of the restriction ofλ–algebra on a nonempty subset

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