Determine Whether the Given Formula Is a Logical Truth of M

question 243

Multiple Choice

determine whether the given formula is a logical truth of M or not. If it is not a logical truth, select a false valuation.
-(∃x) (Cx • Dx) $\lor$ (∃x) (Cx • ∼Dx)

• A) Logical truth
• B) Not a logical truth. False valuation in a domain of 1 member, in which:
• Ca: True Da: False
• C) Not a logical truth. False valuation in a domain of 1 member, in which: Ca: False Da: False
• D) Not a logical truth. False valuation in a domain of 2 members, in which: Ca: True Da: True
• Cb: True Db: False
• E) Not a logical truth. False valuation in a domain of 2 members, in which: Ca: True Da: False
• Cb: True Db: True

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Definitions:

Laboratory Conditions Doctrine

A legal principle in labor law requiring that union representation elections be conducted in an environment that is free from employer coercion and interference.

Representation Election

This is a procedure where employees vote on whether or not they wish for union representation, sometimes leading to the establishment of a new union presence.

Unionization

The process by which workers form or join a labor union to collectively negotiate with their employer for improved conditions, wages, and benefits.

Salting

A tactic used by unions where union workers get hired at non-union workplaces in order to organize and unionize the employees within.