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One way to formally introduce counting principles is through countable sets, the cardinality of these sets, operations among sets, mappings between these sets and formal power series. We follow a high-level approach (also adopted in most introductory textbooks in Discrete Mathematics) as long it is well understood how we can technically formalize the arguments. Working from basic principles and...

background: medical education curriculum improvements can be a chieved by evaluating students' performance. medical students have to pass two undergraduate comprehensive examinations, basic science and preinternship, in iran. purpose: to measure validity of the students' mean score in comprehensive basic science exam (cbse) for predicting their performance in later curriculum phases. methods: t...

In this work, we study direct limits of finite dimensional basic classical simple Lie superalgebras and obtain the conjugacy classes of Cartan subalgebras under the group of automorphisms.