Is it not A OR B and not A not B?

“(not-A) and (not-B)” is the same as “neither A nor B”. Don’t be fooled by the “or” in “nor” — this not a disjunction, it’s a conjunction.

Why are NAND and NOR universal gates?

∴ NAND and NOR gates are called universal gates because they can be combined to produce any of the other gates like OR, AND, and NOT gates. Hence the correct option is option (B). Note: NAND and NOR are economical and it is commonly used in many integrated circuit packages.

Why is NOR gate universal?

One NOR input pin is connected to the input signal A while all other input pins are connected to logic 0. The output will be A’. Thus, the NOR gate is a universal gate since it can implement the AND, OR and NOT functions.

Is XOR and NOR the same?

The NOR gate is a combination OR gate followed by an inverter. Its output is “true” if both inputs are “false.” Otherwise, the output is “false.” The XNOR (exclusive-NOR) gate is a combination XOR gate followed by an inverter….Basic logic gates.

Input 1	Input 2	Output
1	1	1

What is A and a not?

Here’s the standard definition. A contradiction is a conjunction of the form “A and not-A”, where not-A is the contradictory of A. So, a contradiction is a compound claim, where you’re simultaneously asserting that a proposition is both true and false.

Which is better NAND OR NOR?

NAND gate has better ratio of output high drive and output low drive as compared to NOR gate. Hence NAND gate is preferred over NOR. In CMOS technology we use silicon as semiconductor material.

Which of following are known as universal gates a NAND & NOR B and & OR C XOR & OR d ex NOR & XOR?

The logic gates which are derived from the basic gates like AND, OR, NOT gates are known as derived gates. XOR and XNOR are the derived gates. A universal gate is a gate that can implement any Boolean function without the need to use any other gate type. NAND and NOR gates are universal gates.

What is bubbled and gate?

A bubbled OR gate is the combination of two NOT gates and one OR gate. That is, the output of two NOT gates is made as input of OR gate. This expression represents NAND gate. Hence, a bubbled OR gate is equivalent to a NAND gate.

What is NOR gate IC?

A NOR gate (“not OR gate”) is a logic gate that produces a high output (1) only if all its inputs are false, and low output (0) otherwise. Hence the NOR gate is the inverse of an OR gate, and its circuit is produced by connecting an OR gate to a NOT gate.

Is math a tautological?

Abstractions built on fundamental assumptions and axioms would always be assumptions. Hence, most math is assumption-based/axiomatic and not tautological in that sense. The notion of tautology in mathematical logic is a vacuous concept. The fact that an expression is a tautology doesn’t do any logical work.

Does (a and (not B)) or (a & b) equal a?

But using a Truth tabel I checked to see that (a and (not b)) or (a and b) indeed does equal a. And it does make sense intuitively too, but can you actually use the Laws of Boolean Algebra to turn (a and (not b)) or (a and b) into a?

What is the difference between “ neither” and “nor”?

“Nor” with “Neither”. Everybody knows that “neither” and “nor” are bosom buddies. They require balance. A “nor” usually follows a “neither” when they’re used in the same sentence (1). For example, you might say, “I like neither hot dogs nor mustard.” You may also use “nor” if you’re talking about more than two items,…

Is it let neither a nor B or let nor a?

It’s let neither A nor B. It can’t be let nor A nor B because the first nor is comparing one thing to nothing, which goes against the function of the or/nor operand of language. Thanks for contributing an answer to English Language & Usage Stack Exchange!

When do you use “or” and “nor” in English grammar?

When it comes to other negative words, use “or” if the second part of the negative is a noun, adjective, or adverb phrase. If it’s a verb phrase, choose either “nor” or “or.”. If you’re unsure which one to use, consider saying, “and no” or “and not” for the second part. The Curious Case of the Misplaced Modifier & The Grammar Devotional.