Download App

Rules of conjecture — Philosophy STD 12 Arts — Question

Gujarat BoardEnglish MediumSTD 12 ArtsPhilosophyRules of conjecture3 Marks
Question
Prove that the following arguments are standard by constructing metaphorical proof
$A\ \&\ B.$
$B\rightarrow (D\ v\ E)$
$\sim E$
$D \rightarrow (P \rightarrow \sim Q)$
$\therefore P\rightarrow \sim Q$
✓

Answer

$(1)\ A\ \&\ B$ $P$
$(2)\ B\rightarrow (D\ v\ E)$ $P$
$(3)\ \sim E$ $P$
$(4)\ D\rightarrow (P\rightarrow\sim Q)$ $P/\therefore P\rightarrow\sim  Q$
$(5)\ B$ $1,$ Simp.
$(6)\ D\ v\ E$ $2, 5, MP$
$(7)\ D$ $6, 3, DS$
$(8)\ P \rightarrow\sim Q$ $4, 7, MP$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "question To The Point .Marks)" from Rules of conjecture→Rules of conjecture — all question types→Philosophy STD 12 Arts question papers→Gujarat Board STD 12 Arts question papers→Gujarat Board question paper generator→

Similar questions

Prove that the following arguments are standard by constructing metaphorical proof
$A \rightarrow B$
$A\ v\ C$
$E\ \&\ \sim F$
$\sim B$
$\therefore\ C\ \&\ \sim F$
→
Write a short note: General Symptom Empathy.
→
$A\ B$
$\therefore B\ \&\ A$
→
The virtues of truthfulness
→
Prove that the following arguments are standard by constructing metaphorical proof
$R\ \rightarrow\ (S\ v\ T)$
$P\ v((S\ v\ T)\ \rightarrow\ W]$
$M\ v\ \sim\ P$
$(H\ \&\ N)\ \rightarrow\ \sim\ M$
$H\ \&\ N$
$(R\ \rightarrow\ W)\ v\ S$
→
Determine the validity of the following arguments using the direct method of truth table:
$Pv \sim( Q \& R )$
$\sim P $
$\therefore \sim( Q \& R )$
→
(P v Q) → ~ P
→
Determine the validity of the following arguments using the direct method of truth table:
$\sim P\ v \sim Q$
$Q$
$\therefore \sim P$
→
Complex aggregate statement
→
No scientist is illiterate.
No lawyer is illiterate.
No lawyer is a scientist.
→