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Derived Rules: Arrow Exchange and DeMorgan's
For each question decide whether DeMorgan's or Arrow Exchange may be applied and choose the answer that would result.
~(S&R)
?
S→~R by DeMorgan's
?
~S∨~R by DeMorgan's
?
~S→~R by Arrow Exchange
?
S→R by Arrow Exchange
?
Neither rule applies
~(G→H)
?
~G∨~H by DeMorgan's
?
~G&~H by Arrow Exchange
?
G&H by Arrow Exchange
?
G&~H by Arrow Exchange
?
Neither rule applies
~(K∨H)
?
K&~H by DeMorgan's
?
~K&~H by DeMorgan's
?
~K&H by Arrow Exchange
?
K&H by Arrow Exchange
?
Neither rule applies
~(~A→B)
?
~~A&~B by DeMorgan's
?
~~A&B by DeMorgan's
?
~A&~B by Arrow Exchange
?
~A&B by Arrow Exchange
?
Neither rule applies
~(H&J)
?
~H∨~J by DeMorgan's
?
H∨~J by DeMorgan's
?
H&~J by Arrow Exchange
?
~H&J by Arrow Exchange
?
Neither rule applies
~(D→~F)
?
D∨~~F by DeMorgan's
?
D→~~F by DeMorgan's
?
D&~~F by Arrow Exchange
?
D&~F by Arrow Exchange
?
Neither rule applies
~(W∨E)
?
~W∨~E by DeMorgan's
?
~W→~E by DeMorgan's
?
~W&~E by DeMorgan's
?
~W&E by Arrow Exchange
?
Neither rule applies
~(~~A→~B)
?
~~A∨~B by DeMorgan's
?
~A&~B by DeMorgan's
?
~~A&~~B by Arrow Exchange
?
~~A&~~~B by Arrow Exchange
?
Neither rule applies
~(~R&~S)
?
~R∨S by DeMorgan's
?
~~R∨~~S by DeMorgan's
?
~~R→~~S by Arrow Exchange
?
~R→S by Arrow Exchange
?
Neither rule applies
~(~D∨F)
?
~~D&~F by DeMorgan's
?
~D&~~F by DeMorgan's
?
~~D&~~F by DeMorgan's
?
~D→~F by Arrow Exchange
?
Neither rule applies
~(~K→M)
?
~~K&~M by DeMorgan's
?
~~K&M by Arrow Exchange
?
~K&~M by Arrow Exchange
?
K→~M by Arrow Exchange
?
Neither rule applies
~~(H→J)
?
H→J by DeMorgan's
?
~H&J by DeMorgan's
?
H→J by Arrow Exchange
?
H&~J by Arrow Exchange
?
Neither rule applies
~((E∨R)&T)
?
~(E∨R)→T by DeMorgan's
?
(E∨R)→~T by DeMorgan's
?
~(E∨R)∨~T by DeMorgan's
?
~(E∨R)→~T by Arrow Exchange
?
Neither rule applies
~((~N&M)→K)
?
~(~N&M)&~K by DeMorgan's
?
~~(N&M)&K by DeMorgan's
?
~(~N&M)&K by Arrow Exchange
?
(~N&M)&~K by Arrow Exchange
?
Neither rule applies
~((A∨B)∨C)
?
~(A∨B)&C by DeMorgan's
?
~(A∨B)&~C by DeMorgan's
?
(A∨B)&~C by Arrow Exchange
?
~(~(A∨B)→C) by Arrow Exchange
?
Neither rule applies
~((G∨H)→J)
?
~(G∨H)&J by DeMorgan's
?
~(G∨H)&~J by DeMorgan's
?
(G∨H)&~J by Arrow Exchange
?
~(G∨H)→~J by Arrow Exchange
?
Neither rule applies
~(~N&M)→K
?
~(~N&M)&~K by DeMorgan's
?
~(~N&M)∨~K by DeMorgan's
?
(~N&M)&~K by Arrow Exchange
?
~(~N&M)→K by Arrow Exchange
?
Neither rule applies
~~(~(S∨~R)→~T)
?
~(~S∨~R)&T by DeMorgan's
?
(S∨~~R)&T by Arrow Exchange
?
~(S∨R)&~~T by Arrow Exchange
?
~(S∨~R)→T by Arrow Exchange
?
Neither rule applies
~((~N∨~M)&~K)
?
~(~N∨~M)∨~~K by DeMorgan's
?
~(~N∨~M)&~K by DeMorgan's
?
(~N∨~M)∨~~K by Arrow Exchange
?
~(~N∨~M)→~K by Arrow Exchange
?
Neither rule applies
~((R∨~S)→~~T)
?
~(R∨~S)&~~~T by DeMorgan's
?
~(R∨~S)∨~~T by DeMorgan's
?
(R∨~S)&~~~T by Arrow Exchange
?
(R∨~S)&~~T by Arrow Exchange
?
Neither rule applies
~((~A∨~B)∨~C)
?
~(~A∨~B)&~~C by DeMorgan's
?
~(~~A∨~~B)&~~C by DeMorgan's
?
(~A∨~B)→~~C by Arrow Exchange
?
(A&~~B)&C by Arrow Exchange
?
Neither rule applies
~D→~(F&~G)
?
~D→~(F&~~G) by DeMorgan's
?
~~D&~~(F&~G) by DeMorgan's
?
~D→~~(F&~G) by Arrow Exchange
?
~D&~~(F&~G) by Arrow Exchange
?
Neither rule applies
~(~R∨~(S&~T))
?
~R&~~(S&~T) by DeMorgan's
?
~~R&~~(S&~T) by DeMorgan's
?
~~R&~~(S&~T) by Arrow Exchange
?
~~R∨~~(S→~T) by Arrow Exchange
?
Neither rule applies
~(~G→~(H&~J))
?
~~G∨~~(H&~J) by DeMorgan's
?
~~G&~~(H&~~J) by DeMorgan's
?
~G&~~(H&~J) by Arrow Exchange
?
G→~(H&~J) by Arrow Exchange
?
Neither rule applies
~(A→(~B&C))
?
A∨~~(~B&~C) by DeMorgan's
?
A&~(~B&~C) by DeMorgan's
?
A&~(~B&C) by Arrow Exchange
?
~A&~(~B&C) by Arrow Exchange
?
Neither rule applies
~(M∨(~N&J))
?
~M&(~~N&~J) by DeMorgan's
?
~M&~(~N&J) by DeMorgan's
?
M&~(~N&J) by Arrow Exchange
?
~M→~(~N&J) by Arrow Exchange
?
Neither rule applies
~~(~(R&S)∨~(T∨M))
?
~~(R&S)&~~(T∨M) by DeMorgan's
?
~~(R&S)∨~~(T∨M) by DeMorgan's
?
~(R&S)&~~(T∨M) by Arrow Exchange
?
~~(R&S)&~~(T∨M) by Arrow Exchange
?
Neither rule applies
~(~(R&S)∨~(T∨M))
?
~~(R&S)&~~(T∨M) by DeMorgan's
?
~~(R&S)∨~~(T∨M) by DeMorgan's
?
~(R&S)&~~(T∨M) by Arrow Exchange
?
~~(R&S)&~~(T∨M) by Arrow Exchange
?
Neither rule applies
~(A→((~B&C)∨~D))
?
A→(~(~B&C)&~D) by DeMorgan's
?
~A∨~((~B&C)∨~D) by DeMorgan's
?
~A&((~B&C)∨~D) by Arrow Exchange
?
A&~((~B&C)∨~D) by Arrow Exchange
?
Neither rule applies
~(((R&S)&T)&G)
?
(~(R&S)∨~T)&G by DeMorgan's
?
~((R&S)&T)∨~G by DeMorgan's
?
((R&S)&T)&~G by Arrow Exchange
?
((R&S)&T)→G by Arrow Exchange
?
Neither rule applies
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