Journal of Formalized Mathematics
Volume 2, 1990
University of Bialystok
Copyright (c) 1990 Association of Mizar Users

## The Limit of a Real Function at Infinity

Jaroslaw Kotowicz
Warsaw University, Bialystok
Supported by RPBP.III-24.C8.

### Summary.

We introduced the halflines ({\it open} and {\it closed}), real sequences divergent to infinity ({\it plus} and {\it minus}) and the proper and improper limit of a real function at infinty. We prove basic properties of halflines, sequences divergent to infinity and the limit of function at infinity.

#### MML Identifier: LIMFUNC1

The terminology and notation used in this paper have been introduced in the following articles [11] [14] [1] [12] [2] [9] [5] [3] [4] [8] [15] [13] [6] [10] [7]

Contents (PDF format)

#### Bibliography

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