Top node
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Some equation is indeed needed to understand the copyright of
that file
From @ someone <> !
$$
a = \phi
$$


* chapter::

Some equation is indeed needed to understand the copyright of
that file
From @ someone <> !
$$
a = \phi
$$


1 chapter
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The fundamental equation is
$$
2 a = \dot{\phi}
$$

Some equation is indeed needed to understand the copyright of
that file
From @ someone <> !
$$
a = \phi
$$



