21. :Take a look at Truth table # Truth table for most commonly used logical operators. 22. :Take a look at Truth table # Truth table for most commonly used logical operators. 23. Its truth table is the following: 24. Maybe Venn diagrams, Johnston diagrams, Truth tables , Quine McCluskey algorithm, Logical graphs? 25. Within works by Frege and Bertrand Russell, are ideas influential to the invention of truth tables . 26. After " breaking " the feed-back, the truth table construction proceeds in the conventional manner. 27. The two-input version implements logical equality, behaving according to the truth table to the right. 28. In effect the subscript of the operation " is " the truth table of that operation. 29. ABEL includes both concurrent equation and truth table logic formats as well as a sequential state machine description format. 30. Karnaugh maps also allow easy minimizations of functions whose truth tables include " don't care " conditions.
