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## What’s New In O K Printer Viewer Pro?

O&K Printer Viewer Pro is a freeware document viewer and converter for Windows platform. The application offers a thumbnail page preview, standard page navigation, and export to multi formats for you to choose from. You can also open, print, extract, edit, and convert your doc files with the help of this document viewer.
What’s New in This Version:
2. Fixed: Open the file failure bug in the last operation.
How To Install O&K Printer Viewer Pro:

O&K Printer Viewer Pro Requirements:
Windows
You can get the file of O&K Printer Viewer Pro from its official website for free.Q:

Why should the co-principal ideal be exactly one?

Why should the co-principal ideal be exactly one?
Here is an example where I don’t understand why this is true.
Let $k$ be a field and consider the ideal $I = (x-1)k[x]$. Since $x \in I$, $x-1 \in I$ and also $x-1 \in (x-1)k[x] = I$. Thus $I eq \{0\}$ but also $I = k[x]$.

A:

A co-principal ideal $I$ is generated by some element $g$ of $R$ (in fact, $g$ need not be in $I$ itself).
Any power $g^n$ lies in $I$, and any multiple $n\cdot g$ lies in $I$, so every element of $I$ lies in the (two-sided) ideal generated by $g$. Thus $I = (g)$, and since $g eq 0$, the co-principal ideal is trivial.

Dr. Y.S. Sriram

Associate Professor

Dr.Y.S.Sriram is

## System Requirements For O K Printer Viewer Pro:

MINIMUM:
OS: Windows 7, Windows 8, Windows 8.1 (64-bit versions only), Windows 10 (64-bit versions only)
Processor: Intel® Core™ i3-540 / AMD Phenom™ II X2 550 (2.3 GHz or higher) / Intel® Core™ i3-540 / AMD Phenom™ II X2 550 (2.3 GHz or higher) / Intel® Core™ i5-520 / AMD Athlon™ X2 5420 (2.4 GHz or higher) /