First

• An ordinal number that shows the beginning number of a set is called First.

More about First

• `First` is also written as “1st”.

Example of First

• Consider the set of vowels, V = {a, e, i, o, u}. This set starts with the letter `a`, so `a` is the First Element of the set V.

Solved Example on First

Find the First number of the set given below.

Choices:
A. 18
B. 5
C. 8
D. 15
Correct Answer: A
Solution:
Step 1: An ordinal number that shows the beginning number of a set is called First.
Step 2: In the given set, 18 is the First number.

Related Terms for First

• Member of a Set
• Ordinal number
• Set

Additional Links for First

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