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Grzegorz Bancerek (2011)
Formalized Mathematics
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We show that exchanging of pairs in an array which are in incorrect order leads to sorted array. It justifies correctness of Bubble Sort, Insertion Sort, and Quicksort.
Keiko Narita, Artur Kornilowicz, Yasunari Shidama (2011)
Formalized Mathematics
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In this article we demonstrate basic properties of the continuous functions from R to Rn which correspond to state space equations in control engineering.
Keiko Narita, Noboru Endou, Yasunari Shidama (2009)
Formalized Mathematics
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In this article, we formalized Lebesgue's Convergence theorem of complex-valued function. We proved Lebesgue's Convergence Theorem of realvalued function using the theorem of extensional real-valued function. Then applying the former theorem to real part and imaginary part of complex-valued functional sequences, we proved Lebesgue's Convergence Theorem of complex-valued function. We also defined partial sums of real-valued functional sequences and complex-valued functional sequences...
Noboru Endou, Hiroyuki Okazaki, Yasunari Shidama (2012)
Formalized Mathematics
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In this article, we shall extend the formalization of [10] to discuss higher-order partial differentiation of real valued functions. The linearity of this operator is also proved (refer to [10], [12] and [13] for partial differentiation).
Bing Xie, Xiquan Liang, Hongwei Li (2008)
Formalized Mathematics
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In this article, we define two single-variable functions SVF1 and SVF2, then discuss partial differentiation of real binary functions by dint of one variable function SVF1 and SVF2. The main properties of partial differentiation are shown [7].MML identifier: PDIFF 2, version: 7.9.03 4.104.1021
Marco Caminati (2011)
Formalized Mathematics
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First of a series of articles laying down the bases for classical first order model theory. These articles introduce a framework for treating arbitrary languages with equality. This framework is kept as generic and modular as possible: both the language and the derivation rule are introduced as a type, rather than a fixed functor; definitions and results regarding syntax, semantics, interpretations and sequent derivation rules, respectively, are confined to separate articles, to mark...
Takao Inoué (2010)
Formalized Mathematics
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In this article, we shall extend the result of [17] to discuss second-order partial differentiation of real ternary functions (refer to [7] and [14] for partial differentiation).
Artur Korniłowicz (2010)
Formalized Mathematics
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We prove that basic arithmetic operations preserve continuity of functions.
Yasushige Watase, Noboru Endou, Yasunari Shidama (2008)
Formalized Mathematics
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This article contains some definitions and properties refering to function spaces formed by partial functions defined over a measurable space. We formalized a function space, the so-called L1 space and proved that the space turns out to be a normed space. The formalization of a real function space was given in [16]. The set of all function forms additive group. Here addition is defined by point-wise addition of two functions. However it is not true for partial functions. The set of partial...
Yasushige Watase, Noboru Endou, Yasunari Shidama (2012)
Formalized Mathematics
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In this article, we formalized L1 space formed by complexvalued partial functions [11], [15]. The real-valued case was formalized in [22] and this article is its generalization.
Katuhiko Kanazashi, Hiroyuki Okazaki, Yasunari Shidama (2013)
Formalized Mathematics
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In this article, we formalize continuous differentiability of realvalued functions on n-dimensional real normed linear spaces. Next, we give a definition of the Ck space according to [23].