Substitution 5

Proof: Substitution 5

Let's prove the following theorem:

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

then d = b + c

Proof:

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

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

Comments

Please log in to add comments