So you can place the liquid in a container with standardized markings. Volume can change based on temperature and pressure though. The SI unit of volume is the cubic meter. Other units used can be cubic centimeters, liters, etc. Often we choose the units based on the situation. To use units in an equation though, it's often better to start with SI units. You can convert between units of volume using ratios.
So the syllogism is valid. For a syllogism to be valid, the combined diagram must contain all the information asserted by the conclusion. It may contain more information, but it cannot omit anything. Now let's try a syllogism with a particular premise. Example:
An argument is termed formally valid if it has structural self-consistency, i.e. if when the operands between premises are all true the derived conclusion is always also true. In the third example, the initial premises cannot logically result in the conclusion and is therefore categorized as an invalid argument.