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## HOW TO PROVE THAT A NAND GATE IS A UNIVERSAL GATE??

NAND GATE and NOR GATE can be used as universal gates because all the basic logic gates can be realized using NAND or NOR alone as detailed below.

**Realization of Basic logic Gates using NAND**

**Realization of Basic logic Gates using NOR**

Read more at http://www.ccse.kfupm.edu.sa/~amin/eCOE200/Lesson2_6.pdf