Determine whether the following symbolized argument is valid or invalid. If invalid, provide a counterexample; if valid, construct a deduction.
(P → T) & S
S → (T → R)
~R/∴ ~T

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The Answer of Determine whether the following symbolized argument is valid or invalid. If invalid, provide a counterexample; if valid, construct a deduction.
(P → T) & S
S → (T → R)
~R/∴ ~T

Determine Whether the Following Symbolized Argument Is Valid or Invalid