SOLUTION: In a Proof, can a property be used more than once? i.e.: DG=GF Symmetric Property GF=EG Symmetric Property

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Question 159896: In a Proof, can a property be used more than once? i.e.:
DG=GF Symmetric Property
GF=EG Symmetric Property
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
Yes it can. If you could only use one property once, then you would be severely limited and you wouldn't be prove the proposition/hypothesis (after you used up the property).