Mathematically, an equivalence relation is reflexive by definition. So from that perspective, it is by definition **impossible floor something to not be equal to itself**.

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## What is not equal to itself?

**NaN (Not-a-Number)** is the only JavaScript value not equal to itself when comparing with any of the comparison operators. NaN is often the result of meaningless or invalid math computations, so it doesn’t make sense for two NaN values to be considered equal. You can check for NaN values using the Number.

## Can something be equal to itself?

We all know that **any number is equal to itself**. For angles, what we mean is that it is congruent to itself. More generally, any object is the same as itself, which is is consistent with the definition of sameness.

## Is a number always equal to itself?

In algebra, the reflexive property of equality states that **a number is always equal to itself**.

## What does it mean when something is not equal?

not equal; **not of the same quantity, quality, value, rank, ability, etc**.: People are unequal in their capacities.

## What does it mean when a number equals itself?

**The reflexive property states that any real number, a, is equal to itself**. That is, a = a. The symmetric property states that for any real numbers, a and b, if a = b then b = a. The transitive property states that for any real numbers, a, b, and c, if a = b and b = c, then a = c.

## What are the 9 properties of equality?

We have mainly nine properties of equality – **addition, subtraction, multiplication, division, reflexive, symmetric, transitive, substitution, and square root properties**. The addition, subtraction, multiplication, and division properties of equality help to solve algebraic equations involving real numbers.

## Is Commutativity an axiom?

Bookmark this question. Show activity on this post. But **commutativity is a field axiom**, so it must be necessary.

## What is it called when a side equals itself?

**Reflexive Property** A quantity is congruent (equal) to itself. a = a Symmetric Property If a = b, then b = a. Page 2. Angles. Exterior Angle The measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.

## What is axiom of equality?

It states that **if two quantities are both equal to a third quantity, then they are equal to each other**. This holds true in geometry when dealing with segments, angles, and polygons as well. It is an important way to show equality.

## What are the four laws of equality?

The content of the right to equality includes the following aspects: (i) the right to recognition of the equal worth and equal dignity of each human being; (ii) the right to equality before the law; (iii) the right to equal protection and benefit of the law; (iv) the right to be treated with the same respect and …

## What are the 4 properties of equality?

**Algebraic Properties Of Equality**

- Addition. Definition. If a = b, then a + c = b + c. …
- Subtraction. Definition. If a = b, then a – c = b – c. …
- Multiplication. Definition. If a = b, then ac = bc. …
- Division. Definition. If a = b and c is not equal to 0, then a / c = b / c. …
- Distributive. Definition. …
- Substitution. Definition.

## What is congruence property?

What is Transitive Property of Congruence? The transitive property of congruence checks if two angles or lines or any geometric shape is similar in shape, size and all dimensions, to the third angle or line or any geometric shape, then the first line, angle or shape is congruent to the third angle, line or shape.

## What is the meaning of SAS in math?

side-angle-side

Euclidean geometry

first such theorem is the **side-angle-side** (SAS) theorem: If two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.

## What is the HL theorem?

The HL Postulate states that **if the hypotenuse and leg of one right triangle are congruent to the hypotenuse and leg of another right triangle, then the two triangles are congruent**.

## Does congruent mean equal?

**Two angles are congruent if and only if they have equal measures**. Two segments are congruent if and only if they have equal measures. Two triangles are congruent if and only if all corresponding angles and sides are congruent.

## Is supplementary equal?

**When the sum of the measure of two angles is equal to 180 degrees**, they are called supplementary angles. For example, 70 degrees and 110 degrees are supplementary.

## What is the difference between equality and congruence?

If some attributes of geometric figures are the same in magnitude, then they are said to be equal. If both the sizes and the figures are equal, then the figures are said to be congruent. **Equality concerns the magnitude (numbers) while congruence concerns both the shape and the size of a figure**.

## What is congruently?

: **having the same size and shape** congruent triangles.

## Is congruency a real word?

Definition of congruency

**noun, plural con·gru·en·cies**. congruence. GOOSES.

## What is opposite of congruent?

Opposite of corresponding or harmonious in character. **conflicting**. **conflictive**. **incompatible**. **incongruous**.

## What does congruent Lee mean?

/ˈkɒŋ.ɡru.ənt.li/ **in a similar way, where two things or ideas can both exist or can be combined without problems**: The city’s economy, its culture and its politics are congruently interconnected.

## What’s a word for back to back?

**sequential, repeated, continuous, subsequent, simultaneous, consequential**.

## What’s a word for at the same time?

Some common synonyms of simultaneous are **coeval, coincident, contemporaneous, contemporary, and synchronous**. While all these words mean “existing or occurring at the same time,” simultaneous implies correspondence in a moment of time.