What is an equivalence statement?
An EQUIVALENCE statement stipulates that the storage sequence of the entities whose names appear in the list nlist must have the same first memory location. An EQUIVALENCE statement can cause association of entities other than specified in the nlist. An array name, if present, refers to the first element of the array.
What are the two equivalent statements?
Two statement forms are logically equivalent if, and only if, their resulting truth tables are identical for each variation of statement variables. p q and q p have the same truth values, so they are logically equivalent.
What is an equivalence statement in chemistry?
Equivalence Statements As chemists have different ways of expressing measurements they need to be able to convert between different units. Central to this is the concept of an equivalence statement which says two ways of representing the same thing are equivalent. For example 12 in = 1 foot is an equivalence statement.
Which best describes equivalent statements?
Equivalent Statements are statements that are written differently, but hold the same logical equivalence.
How do you write a logically equivalent statement?
Two expressions are logically equivalent provided that they have the same truth value for all possible combinations of truth values for all variables appearing in the two expressions. In this case, we write X≡Y and say that X and Y are logically equivalent.
What is equivalent statement logic?
Definition. Two expressions are logically equivalent provided that they have the same truth value for all possible combinations of truth values for all variables appearing in the two expressions. In this case, we write X≡Y and say that X and Y are logically equivalent.
What is the purpose of an equivalence statement how are they used?
EQUIVALENCE is a specification statement which causes two or more items (variables or arrays) to be associated with each other, i.e. to correspond to the same area of memory. Character items can only be associated with other character items; otherwise the data types do not have to match.
What are the logically equivalent statements show an example?
For example, P→Q is logically equivalent to ⌝P∨Q. So. ⌝(P→Q) is logically equivalent to ⌝(⌝P∨Q).
Are equivalence statements only used in chemistry?
Equivalence is the amount of substance that reacts with an equivalent amount of another substance. It is a unit of measurement that is used in chemistry, as well as in biological sciences.
What does mEq mean in chemistry?
Some medical tests report results in milliequivalents per litre (mEq/L). An equivalent is the amount of a substance that will react with a certain number of hydrogen ions. A milliequivalent is one-thousandth of an equivalent.
How do you write an equivalent statement of a conditional statement?
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.