Importants of rib vaults in gothic architectur…

Importants of rib vaults in gothic architecture?

Vault (French voûte, from Italian volta) is an architectural term for an arched formused to provide a space with a ceiling or roof. The parts of a vault exert lateral thrust that requires a counter resistance. When vaults are built underground, the ground gives all the resistance required.

https://en.wikipedia.org/wiki/Rib_vault