Proof: Subtract Same Sides Sub

Let's prove the following theorem:

if the following are true:
  • a = b
  • c = d

then a - c = b - d

Proof:

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

Given
1 a = b
2 c = d
Proof Table
# Claim Reason
1 a - c = b - d if a = b and c = d, then a - c = b - d

Comments

Please log in to add comments