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(1) X=Y ; Given (2) X^2=XY ; Multiply both sides by X (3) X^2-Y^2=XY-Y^2 ; Subtract Y^2 from both sides (4) (X+Y)(X-Y)=Y(X-Y) ; Factor (5) X+Y=Y ; Cancel out (X-Y) term (6) 2Y=Y ; Substitute X for Y, by equation 1 (7) 2=1 ; Divide both sides by Y -"Omni", proof that 2 equals 1
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__ /^\ .' \ / :.\ / \ | :: \ / /. \ / ::: | | |::. \ / :::'/ | / \::. | / :::'/ `--` \' `~~~ ':'/` / ( / 0 _ 0 \ \/ \_/ \/ -== '.' | '.' ==- /\ '-^-' /\ \ _ _ / .-`-((\o/))-`-. _ / //^\\ \ _ ."o".( , .:::. , )."o". |o o\\ \:::::/ //o o| \ \\ |:::::| // / \ \\__/:::::\__// / \ .:.\ `':::'` /.:. / \':: |_ _| ::'/ `---` `"""""` `---`
cat /etc/passwd | cut -d: -f1