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No proper program contains an indication which as an operator-applied occurrence identifies an operator-defining occurrence which as an indication-applied occurrence identifies an indication-defining occurrence different from the one identified by the given indication as an indication-applied occurrence. -ALGOL 68 Report
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__ /^\
.' \ / :.\
/ \ | :: \
/ /. \ / ::: |
| |::. \ / :::'/
| / \::. | / :::'/
`--` \' `~~~ ':'/`
/ (
/ 0 _ 0 \
\/ \_/ \/
-== '.' | '.' ==-
/\ '-^-' /\
\ _ _ /
.-`-((\o/))-`-.
_ / //^\\ \ _
."o".( , .:::. , )."o".
|o o\\ \:::::/ //o o|
\ \\ |:::::| // /
\ \\__/:::::\__// /
\ .:.\ `':::'` /.:. /
\':: |_ _| ::'/
`---` `"""""` `---`
who | sort