Abstract types can be constituted-of-or-filled-with polytopes.Logical formLearned from2 sentences. Syntax can be abstract.Logical formLearned from2 sentences. A foundation can be for abstract thinking.Logical formLearned from2 sentences. A rigour can be abstract.Logical formLearned from2 sentences. Extremes can be abstract.Logical formLearned from2 sentences. A (fairy tale) can be abstract.Logical formLearned from2 sentences. A band may remain abstract.Logical formLearned from2 sentences. An illusion can be abstract.Logical formLearned from2 sentences. A moral reasoning can be abstract.Logical formLearned from2 sentences. Some games can be abstract.Logical formLearned from2 sentences. Perceptions can be abstract.Logical formLearned from2 sentences. Abstract algebraic logic may undergo a development.Logical formLearned from2 sentences. Soundtracks can be abstract.Logical formLearned from2 sentences. Examples can be abstract.Logical formLearned from2 sentences. Abstract (syntax notation) can be a standard notation.Logical formLearned from2 sentences.