Abstract expressionists may follow a breakthrough.Logical formLearned from2 sentences. A playing can be abstract.Logical formLearned from2 sentences. A sketch can be abstract.Logical formLearned from2 sentences. Symbols may be related to abstract concepts.Logical formLearned from2 sentences. Calculations can be abstract.Logical formLearned from2 sentences. Works of art can be abstract.Logical formLearned from2 sentences. Some models can be abstract.Logical formLearned from2 sentences. Engagement can be for abstract concepts.Logical formLearned from2 sentences. Abstract thinking may single_out qualities.Logical formLearned from2 sentences. A form can be constituted-of-or-filled-with abstract (data types).Logical formLearned from2 sentences. (Data type definitions) can be abstract.Logical formLearned from2 sentences. Abstract objects can be relevant to reasoning.Logical formLearned from2 sentences. An (optimization problem) can be abstract.Logical formLearned from2 sentences. An education can be abstract.Logical formLearned from2 sentences. A (heat treatment) can be abstract.Logical formLearned from2 sentences.