Refer to the Following Formula: ∼(∀X){(Ix • Jx) ⊃ [Kx

question 87

Short Answer

refer to the following formula: ∼(∀x){(Ix • Jx) ⊃ [Kx ≡ (La • Lb)]}
-Are there any free variables? If so, which are they?

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Definitions:

Light

Electromagnetic radiation within a certain portion of the electromagnetic spectrum, visible to the human eye and responsible for the sense of sight.

Pupil

The adjustable opening in the center of the eye which allows varying amounts of light to enter the eye.

Pupil

The opening in the iris of the eye that allows light to enter the retina.

Light

Electromagnetic radiation within a certain portion of the electromagnetic spectrum, perceived by the human eye as brightness of varying wavelengths and colors.