Summary

Bundesvertrag von 1815

Article 6 Cantons may not forge coalitions amongst themselves that are harmful to the Federal Treaty or the rights of the other cantons.
Article 7 After the recognition of the XXII cantons, the Confederation accepts the principle that there are no longer any subjected lands in Switzerland anymore; the enjoyment of political rights can never be the exclusive privilege of one class of citizens of any canton.
Source: Wikisource

Bundesvertrag von 1815

Article 4 In case of external or internal danger, every canton has the right to demand a loyal attitude from its Confederates. When troubles break out in one canton, the government in question may urge the help of the other cantons, but the Vorort should be notified immediately; in case of an enduring danger, the Tagsatzung will, at the request of the government in question, take additional measures.
Source: Wikisource

Bundesvertrag von 1815

Article 11 The free purchase of groceries, country products and trade commodities, and for these matters and for cattle the unhindered export and import from one canton to another, are guaranteed, except for the necessary police dispositions against usury and harmful exercise of the right of first refusal.
Source: Wikisource

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