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Question Number 178434 by Spillover last updated on 16/Oct/22

Simplify by using law of algebra  (a) [p∨(p∧q)]→∼p  (b)(p∧q)→q

$$\mathrm{Simplify}\:\mathrm{by}\:\mathrm{using}\:\mathrm{law}\:\mathrm{of}\:\mathrm{algebra} \\ $$$$\left(\mathrm{a}\right)\:\left[\mathrm{p}\vee\left(\mathrm{p}\wedge\mathrm{q}\right)\right]\rightarrow\sim\mathrm{p} \\ $$$$\left(\mathrm{b}\right)\left(\mathrm{p}\wedge\mathrm{q}\right)\rightarrow\mathrm{q} \\ $$

Answered by Spillover last updated on 16/Oct/22

Answered by cortano1 last updated on 16/Oct/22

(a) [p∨(p∧q))⇒∼p        = p⇒∼p       = ∼p∨∼p = ∼p

$$\left(\mathrm{a}\right)\:\left[\mathrm{p}\vee\left(\mathrm{p}\wedge\mathrm{q}\right)\right)\Rightarrow\sim\mathrm{p} \\ $$$$\:\:\:\:\:\:=\:\mathrm{p}\Rightarrow\sim\mathrm{p} \\ $$$$\:\:\:\:\:=\:\sim\mathrm{p}\vee\sim\mathrm{p}\:=\:\sim\mathrm{p} \\ $$

Commented by Spillover last updated on 16/Oct/22

thank you

$$\mathrm{thank}\:\mathrm{you} \\ $$

Commented by Spillover last updated on 16/Oct/22

yours is the best and easiest

$${yours}\:{is}\:{the}\:{best}\:{and}\:{easiest} \\ $$

Answered by cortano1 last updated on 16/Oct/22

(b) (p∧q)⇒q = (∼p∨∼q)∨q     = ∼p∨ T= T

$$\left(\mathrm{b}\right)\:\left(\mathrm{p}\wedge\mathrm{q}\right)\Rightarrow\mathrm{q}\:=\:\left(\sim\mathrm{p}\vee\sim\mathrm{q}\right)\vee\mathrm{q} \\ $$$$\:\:\:=\:\sim\mathrm{p}\vee\:\mathrm{T}=\:\mathrm{T} \\ $$

Commented by Spillover last updated on 16/Oct/22

thanks

$$\mathrm{thanks} \\ $$

Commented by SLVR last updated on 16/Oct/22

nice sir..

$${nice}\:{sir}.. \\ $$

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