Examlex
What relationship pattern is illustrated in the following schema?
VEHICLE (VehicleID,Cost)
CAR (VehicleID,NumberOfSeats)
TRUCK (VehicleID,CargoCapacity)
VehicleID in CAR must exist in VehicleID in VEHICLE
VehicleID in TRUCK must exist in VehicleID in VEHICLE
Valid Inference
A logical conclusion drawn from premises that are accepted as true, ensuring the conclusion necessarily follows from them.
Copernicus
A Renaissance mathematician and astronomer who formulated a model of the universe that placed the Sun rather than the Earth at its center.
Sound Argument
An argument with true premises that also passes the Test of Logical Strength.
Valid
Sound or well-founded; logically correct and acceptable.
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