## What is the difference between false and Cannot say?

False – the statement is logically false based on the information or opinions contained in the passage. Cannot say – it is impossible to decide whether the statement is true or false without more information. A statement is true if the information given in the statement is given explicitly in the passage.

## What is the correct method of answering a true/false based question?

For True/False questions, always provide explanation justifying your solution. Never answer in one word: True or False. As per Chegg Q&A Guidelines you must answer first four sub-parts.

## What’s a true or false question?

A true or false question consists of a statement that requires a true or false response. There are other variations of the True or False format as well, such as: “yes” or “no”, “correct” or “incorrect”, and “agree” or “disagree” which is often used in surveys.

## What is true false?

1. true-false – offering a series of statements each of which is to be judged as true or false; “a true-false test” multiple-choice – offering several alternative answers from which the correct one is to be chosen; or consisting of such questions; “multiple-choice questions”; “a multiple-choice test”

## Why is if false then true true?

False only implies true if the subject is binary (either 1 or 0). Since that doesn’t really happen in the real world, false does not imply true. Because you don’t know left without right.

## What does && mean in texting?

Particularly in What is the meaning of && abbreviation? The meaning of && abbreviation is “and” What does && mean? && as abbreviation means “and”

## What does || mean in coding?

logical OR operator

## What is in truth table?

A truth table is a mathematical table used in logic—specifically in connection with Boolean algebra, boolean functions, and propositional calculus—which sets out the functional values of logical expressions on each of their functional arguments, that is, for each combination of values taken by their logical variables.

## What is equivalent to Q -> p?

A conditional statement is logically equivalent to its contrapositive. Converse: Suppose a conditional statement of the form “If p then q” is given. The converse is “If q then p.” Symbolically, the converse of p q is q p.

## How do you negate P and Q?

The negation of p ∧ q asserts “it is not the case that p and q are both true”. Thus, ¬(p ∧ q) is true exactly when one or both of p and q is false, that is, when ¬p ∨ ¬q is true. Similarly, ¬(p ∨ q) can be seen to the same as ¬p ∧ ¬q.

## When p is false and q is true then p or q is true?

A second style of proof is begins by assuming that “if P, then Q” is false and derives a contradiction from that. In the truth tables above, there is only one case where “if P, then Q” is false: namely, P is true and Q is false….IF…., THEN….

P Q If P, then Q
F T T
F F T

## What is the inverse of P → Q?

The inverse of p → q is ∼ p →∼ q. A conditional statement and its converse are NOT logically equivalent. A conditional statement and its inverse are NOT logically equivalent. The converse and the inverse of a conditional statement are logically equivalent to each other.

## What is negation of P if and only if q?

Let a statement P is “X is true if and only if Y is true”. Hence negation of P is (not X) or (not Y) i.e. Either X or Y is false. …

## What is if and only if logically equivalent to?

It says that P and Q have the same truth values; when “P if and only if Q” is true, it is often said that P and Q are logically equivalent. In fact, when “P if and only Q” is true, P can subsitute for Q and Q can subsitute for P in other compound sentences without changing the truth.

## How do you do an if and only proof?

To prove a theorem of the form A IF AND ONLY IF B, you first prove IF A THEN B, then you prove IF B THEN A, and that’s enough to complete the proof. Using this technique, you can use IF… THEN proofs as well as IF AND ONLY IF proofs in your own proof.

## What is the negation of if?

Negation of “If A, then B”. This might seem confusing at first, so let’s take a look at a simple example to help understand why this is the right thing to do. So the negation of “if A, then B” becomes “A and not B”.