Demonstration device for proving logic algebraic formula A (A+B) =A

Abstract

The invention discloses a demonstration device for proving a logic algebraic formula A (A+B) =A. The demonstration device is used for providing the establishment of the logic algebraic formula A (A+B) =A, i.e. if an and-or expression comprises a product term A and the or A+B of the and other variable B form another product term, the other product term A+B is needless. The demonstration device comprises a first demonstration circuit and a second demonstration circuit which are connected in parallel, and a power supply which is serially connected with the first demonstration circuit and the second demonstration circuit which are connected in parallel, wherein the first demonstration circuit denotes the logic combination of the A (A+B) of the and-or expression in the logic algebraic formula A (A+B) =A which is required to be proved; and the second demonstration circuit denotes the logic combination of the product term A in the logic algebraic formula A (A+B) =A which is required to be proved. By adopting a visualized graphic thinking design, the demonstration device can effectively enhance the ability of beginners in understanding common logic problems in digital circuits, so as to effectively improve teaching effects.

Description

technical field [0001] The invention relates to a teaching instrument for proving a logic algebra formula, in particular to a circuit demonstration device for proving the logic algebra formula A(A+B)=A in the field of digital circuits. Background technique [0002] In the teaching of digital circuits, because beginners often have difficulties in understanding when they face the logical relationship in the field of digital circuits for the first time, the teaching of logical algebraic formulas is often not intuitive enough and cannot bring students enough The help on the understanding of the students can not achieve the desired teaching effect. Contents of the invention [0003] The purpose of the present invention is to provide a demonstration device for proving the logical algebraic formula A(A+B)=A, which is designed with a visual graphic thinking method, which can effectively strengthen beginners' ability to deal with commonly used logic problems in digital circuits. C...

AI Technical Summary

Problems solved by technology

[0002] In the teaching of digital circuits, because beginners often have difficulties in understanding when they face the logical relationship in the field of digital circuits for the first time, the teaching of logical algebraic formulas is often not intuitive enough and cannot bring students enough The help on understanding, can not achieve the desired teaching effect

Images