Symbolize the Following Argument,and Test It for Validity

question 56

Short Answer

Symbolize the following argument,and test it for validity.If valid,construct a deduction;
if invalid,assign truth values that show that the premises can be true while the conclusion is false.Use these letters:D = The drought will continue. ;S = We get an early storm. ;
M = Managers of the ski areas will be happy. ;F = There will be great fire danger next year.
There will be a great danger of fire next year only if the drought continues,and it will continue unless we get an early storm.However,if we do get an early storm,the ski area managers will be happy.So if the ski area managers are not happy,it'll mean that there's going to be a great danger of fire next year.

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Definitions:

Overfishing

The depletion of fish stocks due to fishing at a rate that is unsustainable.

Property Rights

Legal rights to possess, use, and dispose of assets including tangible and intangible properties.

Deforested

Areas that have been cleared of trees and converted to non-forest use.

Extraction Cost

All costs associated with extracting a natural resource and readying it for sale.