Proof: Midpoint Distance Half 2

Let's prove the following theorem:

if M is the midpoint of line AB, then distance AM = (distance AB) / 2

Proof:

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Given
1 M is the midpoint of line AB
Proof Table
# Claim Reason
1 distance AB = (distance AM) ⋅ 2 if M is the midpoint of line AB, then distance AB = (distance AM) ⋅ 2
2 (distance AM) ⋅ 2 = distance AB if distance AB = (distance AM) ⋅ 2, then (distance AM) ⋅ 2 = distance AB
3 distance AM = (distance AB) / 2 if (distance AM) ⋅ 2 = distance AB, then distance AM = (distance AB) / 2

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