Mac can't verify SageMath-7.4
I just purchased a MacBookPro. I downloaded Sage-7.4-OSX_10.11.6-x86_64.app.dmg. When I click on the Sage icon a window opens saying: Verifying "SageMath-7.4"... When it is just over half done it stops. What could be the problem?
This file finishes verification for me on a Macbook Pro running El Capitan. Does your computer have that or Sierra?