Use the symbolization key below (in bold) to create substitution instances (in SL) of the meta-language sentences. Φ : A↔~C Ψ: ~(B&A) Γ: DvB

1. Γ → ~Φ
2. Ψ v Φ
3. ~Ψ → Φ
4. Γ v (Φ→Ψ)
5. ~Φ & Ψ

its the fourth option

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

happy to

pls mark as brainliest.

44

step-by-step explanation:

the