A symbol-manipulation can be abstract.Logical formLearned from2 sentences. An engineer can be abstract.Logical formLearned from2 sentences. Abstract mathematics may be based on metaphors.Logical formLearned from2 sentences. Abstract reasoning can be about a structure of events.Logical formLearned from2 sentences. Mathematics can be abstract.Logical formLearned from2 sentences. Abstract mathematics can be by projections.Logical formLearned from2 sentences. A (control system) may perform abstract reasoning.Logical formLearned from2 sentences. A (network efficiency) can be abstract.Logical formLearned from2 sentences. Abstract reasoning may be doed.Logical formLearned from2 sentences. A thought. can be abstract.Logical formLearned from2 sentences. A basic science can be abstract.Logical formLearned from2 sentences. An abstract expressionism may dominate painting.Logical formLearned from2 sentences. An abstract expressionism may celebrate painters.Logical formLearned from2 sentences. A sumti can be abstract.Logical formLearned from2 sentences. A r can be abstract.Logical formLearned from2 sentences.