The resignation of the cabinet after a defeat in parliament, is an expression of the principle of

The resignation of the cabinet after a defeat in parliament is an expression of the principle of "collective responsibility". This principle means that all members of the cabinet are jointly responsible for the decisions taken by the government. When a decision is taken by the cabinet, all members are expected to support and defend it publicly. Therefore, if the government loses a vote of confidence in parliament, the prime minister and the entire cabinet are expected to resign, as they have collectively failed in their responsibility to govern effectively. This principle ensures that the government remains accountable to parliament and the people, and that there is a system of checks and balances in place to prevent the abuse of power.