A (type checking) can be physical.Logical formLearned from2 sentences. (Model checking) may use temporal logic.Logical formLearned from2 sentences. Items may include (checking account balances).Logical formLearned from2 sentences. A site may refer participants to a (get checking program).Logical formLearned from2 sentences. A (get checking program) can be citywide.Logical formLearned from2 sentences. Some checking can be for conflicts.Logical formLearned from2 sentences. An implementation may do a checking.Logical formLearned from2 sentences. A (default revocation checking mechanism) may pertain-to a (service provider).Logical formLearned from2 sentences. A (default revocation checking mechanism) of a (service provider) may be used.Logical formLearned from2 sentences. (Revocation checking) may be disabled.Logical formLearned from2 sentences. A need can be for (type checking).Logical formLearned from2 sentences. Generics may enable (type checkings).Logical formLearned from2 sentences. Difficulty may qualify for a checking.Logical formLearned from2 sentences. Matter may undergo a checking.Logical formLearned from2 sentences. A touch may undergo a checking.Logical formLearned from2 sentences.