A Set of Propositions Is Consistent If There Is an Assignment

question 199

Essay

A set of propositions is consistent if there is an assignment of truth values to each of the variables in the propositions that makes each proposition true. Is the following set of propositions consistent? The system is in multiuser state if and only if it is operating normally. If the system is operating normally, the kernel is functioning. The kernel is not functioning or the system is in interrupt mode. If the system is not in multiuser state, then it is in interrupt mode. The system is in interrupt mode.

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Definitions:

Equivalent Annual Annuity

The annual cash flow of an investment that yields the same present value as the investment’s costs, used in capital budgeting to compare the profitability of investments.

Payback

The period of time required for the return on an investment to "pay back" the initial capital outlay.

Cost of Capital

Cost of capital refers to the minimum rate of return a company must earn on its investments to satisfy its investors, creditors, and other providers of capital.

NPV

Net Present Value, a method for assessing the worth of a project or investment by applying a discount rate to future cash flows to ascertain their current value.