static int selinux_enabled = 0; The value of variable "selinux_enabled" is constant 0 of integer type which is not allowed to change. value of selinux_enabled is constant 0 is Proposition p. variable selinux_enabled is of type integer is Proposition q . value of selinux_enabled is not allowed to change is Proposition r.

[math]

texttt {So. p is true if } q ; wedge ; r \

texttt{So P is a compound proposition or conjuction.}

[/math]

http://selinuxproject.org/page/Main_Page

http://en.wikipedia.org/wiki/Security-Enhanced_Linux