Use Indirect Truth Tables to Determine Whether Each of the Following

question 44

Short Answer

use indirect truth tables to determine whether each of the following arguments is valid. If the argument is invalid, specify a counterexample.
-(H ⊃∼I) • ∼J
∼I ⊃ [(J $\lor$ K) • (J $\lor$ H)]
∼H $\lor$ (K ⊃ L) / L ⊃∼H

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Definitions:

Bedsore

A sore that develops on the body due to prolonged pressure from lying in one position.

Alopecia

A condition causing hair loss from some or all areas of the body, typically the scalp.

Baldness

The condition of having a lack of hair on the scalp, also known as alopecia.

Cicatrix

The medical term for a scar that is left on the skin after a wound has healed.