There exist alternative theories, e.g., prototype-based, exemplars-based, frontier-based, rule-based [44], [45].
American workers are finding themselves at a new frontier, and the rules are being written on the fly.
If even a fraction of these ambitions are realised, could the Moon become a free-for-all: a final frontier, with no rules, no laws and all a long way from home?
The European commission had previously said that it planned to send a team of monitors to Gibraltar next month to check whether Spain was breaking EU rules on frontier controls, but on Friday a Downing Street spokesman said Cameron had asked Barroso to ensure it was sent "urgently".
Frontier living is frontier living.
After shooting the man who murdered his wife, a Danish settler incurs the wrath of the man's brother, a ruthless land baron who rules their frontier town.
But the Netherlands wants to block their Schengen membership until two consecutive monitoring reports — which have issued twice yearly — are positive, arguing that a country cannot guard Europe's frontiers if the rule of law is in question, however well its border guards are equipped.
Suddenly, Rule 26 demands frontier justice.
Installation of permanent checkpoints implementing systematic controls at frontiers, however, would breach the rules, they say.
Under Leopold's rule the eastern frontier was extended to the Vienna Woods after a war with the Magyars.
