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Unformatted text preview: erms. Redundant terms can be
introduced in several ways such as adding xx′, multiplying
by (x + x′), adding yz to xy + x′z, or adding xy to x. When
possible, the added terms should be chosen so that they
will combine with or eliminate other terms.
WX + XY + X′Z′ + WY′Z′ (add WZ′ by consensus theorem)
= WX + XY + X′Z′ + WY′Z′ + WZ′ (eliminate WY′Z′)
= WX + XY + X′Z′ + WZ′ (eliminate WZ′)
= WX + XY + X′Z′ (327)
Example (328), p 6970 Proving Validity of an Equation
Often we will need to determine if an equation is valid for all
combinations of values of the variables. Several methods can be
used to determine if an equation is valid:
1. Construct a truth table...
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This document was uploaded on 03/16/2014 for the course EE 316 at University of Texas at Austin.
 Spring '08
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