Question

prove that A is subset of A union B
using definition of set​

Answer 1

Answer:

Let A and B be sets. Show that

A⊆(A∪B)

My proof is as follows, but I don't feel confident that what I've done is correct. Any input is much appreciated.

x∈A∪B≡x∈A∧x∈B≡x∈A

Therefore, A is a subset of the union of A and B.

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Answer 2

This is the proof to the given statement. Please Mark Me As The Brainliest Answer.