Proof: Multiply by 1 3

Let's prove the following theorem:

if a ⋅ 1 = b, then a = b

Proof:

View as a tree | View dependent proofs | Try proving it

Given
1 a ⋅ 1 = b
Proof Table
# Claim Reason
1 a ⋅ 1 = a a ⋅ 1 = a
2 a = b if a ⋅ 1 = a and a ⋅ 1 = b, then a = b

Comments

Please log in to add comments