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In the following categorical proposition, " Some newspapers are sound sources of information," the ...

In the following categorical proposition, " Some newspapers are sound sources of information," the expression in italics functions as a

▸ subject term

▸ predicate term

▸ copula

▸ quantifier

samanthakay 93 1 Reply

birdnugget

2 years ago

Consider this proof, (1.)E[~I (~DvI)] / ~DvF (2.)[~I (~DvI)]E (3.(~I (~DvI) (4.) ~ I (5.) (~ D v I) ...

Consider this proof, (1.)E•[~I •(~DvI)] /∴ ~DvF (2.)[~I •(~DvI)]•E (3.(~I •(~DvI) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 8?

▸ 7 Simp

▸ 7 Add

▸ 6, 7 DS

manonvsb 68 1 Reply

clarkh7839

2 years ago

Consider this proof, (1.) I (E ~ L) (2.) I ~D / (I ~ D) ~L (3.) I (4.) E ~L (5.) ~L (6.) (I ~ ...

Consider this proof, (1.) I ⊃ (E ∙ ~ L) (2.) I ∙ ~D /∴ (I ∙ ~ D) ∙ ~L (3.) I (4.) E ∙ ~L (5.) ~L (6.) (I ∙ ~ D) ∙ ~L What is the justification for line 6?

▸ 2, 5 MP

▸ 2 Simp

▸ 2, 5 Conj

kyaramarie318 61 1 Reply

nancy123

2 years ago

Consider this proof, (1.) I (E ~ L) (2.) I ~D / (I ~ D) ~L (3.) I (4.) E ~L (5.) ~L (6.) (I ~ ...

Consider this proof, (1.) I ⊃ (E ∙ ~ L) (2.) I ∙ ~D /∴ (I ∙ ~ D) ∙ ~L (3.) I (4.) E ∙ ~L (5.) ~L (6.) (I ∙ ~ D) ∙ ~L What is the justification for line 5?

▸ 4 Add

▸ 4 Simp

▸ 4 Com

cheezymac 61 1 Reply

mouallemj

2 years ago

Consider this proof, (1.) I (E ~ L) (2.) I ~D / (I ~ D) ~L (3.) I (4.) E ~L (5.) ~L (6.) (I ~ ...

Consider this proof, (1.) I ⊃ (E ∙ ~ L) (2.) I ∙ ~D /∴ (I ∙ ~ D) ∙ ~L (3.) I (4.) E ∙ ~L (5.) ~L (6.) (I ∙ ~ D) ∙ ~L What is the justification for line 4?

▸ 1, 3 MP

▸ 2, 3 MP

▸ 1, 2, 3 MP

hussainizzle 60 1 Reply

egidrarc

2 years ago

Consider this proof, (1.) E (I ~ E) (2.)E / ~E (3.) I ~E (4.) ~E I (5.) ~E What is the ...

Consider this proof, (1.) E ⊃ (I ∙ ~ E) (2.)E /∴ ~E (3.) I ∙ ~E (4.) ~E ∙ I (5.) ~E What is the justification for line 5?

▸ 4 Simp

▸ 1, 4 MT

▸ 2 Add

bundlecrap 72 1 Reply

birdnugget

2 years ago

Consider this proof, (1.) E (I ~ E) (2.)E / ~E (3.) I ~E (4.) ~E I (5.) ~E What is the ...

Consider this proof, (1.) E ⊃ (I ∙ ~ E) (2.)E /∴ ~E (3.) I ∙ ~E (4.) ~E ∙ I (5.) ~E What is the justification for line 4?

▸ 1, 3 MT

▸ 3 Simp

▸ 3 Com

swimchk13 64 1 Reply

julie5

2 years ago

Consider this proof, (1.) E (I ~ E) (2.)E / ~E (3.) I ~E (4.) ~E I (5.) ~E What is the ...

Consider this proof, (1.) E ⊃ (I ∙ ~ E) (2.)E /∴ ~E (3.) I ∙ ~E (4.) ~E ∙ I (5.) ~E What is the justification for line 3?

▸ 1 Simp

▸ 1, 2 MP

▸ 2 Add

kincasdce123 46 1 Reply

collegestudent1

2 years ago

Consider this proof, (1.) E ( ~ I K) (2.)E / K (3.) [E ( ~ I K)] [( ~ I K) E] (4.) E ( ~ I ...

Consider this proof, (1.) E ≡ ( ~ I • K) (2.)E /∴ K (3.) [E ⊃ ( ~ I • K)] • [( ~ I • K) ⊃ E] (4.) E ⊃ ( ~ I • K) (5.) ~ I • K (6.)K• ~I (7.) K What is the justification for line 7?

▸ 6 Simp

▸ 6 Comn

▸ 5, 6 Conj

vikingblood 57 1 Reply

Keleko12

2 years ago

Consider this proof, (1.) E ( ~ I K) (2.)E / K (3.) [E ( ~ I K)] [( ~ I K) E] (4.) E ( ~ I ...

Consider this proof, (1.) E ≡ ( ~ I • K) (2.)E /∴ K (3.) [E ⊃ ( ~ I • K)] • [( ~ I • K) ⊃ E] (4.) E ⊃ ( ~ I • K) (5.) ~ I • K (6.)K• ~I (7.) K What is the justification for line 6?

▸ 5 Add

▸ 5 Com

▸ 4, 5 MT

wberry8 56 1 Reply

bjee231

2 years ago

Consider this proof, (1.) E ( ~ I K) (2.)E / K (3.) [E ( ~ I K)] [( ~ I K) E] (4.) E ( ~ I ...

Consider this proof, (1.) E ≡ ( ~ I • K) (2.)E /∴ K (3.) [E ⊃ ( ~ I • K)] • [( ~ I • K) ⊃ E] (4.) E ⊃ ( ~ I • K) (5.) ~ I • K (6.)K• ~I (7.) K What is the justification for line 5?

▸ 4, 2 MT

▸ 4, 2 DS

▸ 4, 2 MP

unrendezvous 59 1 Reply

tkane127

2 years ago

Consider this proof, (1.) E ( ~ I K) (2.)E / K (3.) [E ( ~ I K)] [( ~ I K) E] (4.) E ( ~ I ...

Consider this proof, (1.) E ≡ ( ~ I • K) (2.)E /∴ K (3.) [E ⊃ ( ~ I • K)] • [( ~ I • K) ⊃ E] (4.) E ⊃ ( ~ I • K) (5.) ~ I • K (6.)K• ~I (7.) K What is the justification for line 4?

▸ 3 Simp

▸ 3 Com

▸ 1, 3 HS

tunisia81 59 1 Reply

shanelljac204

2 years ago

Consider this proof, (1.) E ( ~ I K) (2.)E / K (3.) [E ( ~ I K)] [( ~ I K) E] (4.) E ( ~ I ...

Consider this proof, (1.) E ≡ ( ~ I • K) (2.)E /∴ K (3.) [E ⊃ ( ~ I • K)] • [( ~ I • K) ⊃ E] (4.) E ⊃ ( ~ I • K) (5.) ~ I • K (6.)K• ~I (7.) K What is the justification for line 3?

▸ 1, 2 MP

▸ 1 Bicond

▸ 1, 2 MT

momoluv25 52 1 Reply

latoya86

2 years ago

Consider this proof, (1.) E D (2.) ~ (E D) O/ Ev~O (3.) [~ (E D) O] [O ~ (E D)] (4.) [O ...

[html]Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E• D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 9?

▸ 8 Ad

Kss612 61 1 Reply

dcmc92

2 years ago

Consider this proof, (1.) E D (2.) ~ (E D) O/ Ev~O (3.) [~ (E D) O] [O ~ (E D)] (4.) [O ...

[html]Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E • D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 8?

▸ 7 D

pattytcakes 61 1 Reply

JRAD814

2 years ago

Consider this proof, (1.) E D (2.) ~ (E D) O/ Ev~O (3.) [~ (E D) O] [O ~ (E D)] (4.) [O ...

[html]Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E • D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 7?

▸ 5,

inkster 65 1 Reply

CrazyW27

2 years ago

Consider this proof, (1.) E D (2.) ~ (E D) O/ Ev~O (3.) [~ (E D) O] [O ~ (E D)] (4.) [O ...

[html]Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E • D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 6?

▸ 1 C

susu 61 1 Reply

shanelljac204

2 years ago

Consider this proof, (1.) E D (2.) ~ (E D) O/ Ev~O (3.) [~ (E D) O] [O ~ (E D)] (4.) [O ...

[html]Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E • D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 5?

▸ 4 S

cyberk 59 1 Reply

edwardsshe

2 years ago

Consider this proof, (1.) E D (2.) ~ (E D) O/ Ev~O (3.) [~ (E D) O] [O ~ (E D)] (4.) [O ...

[html]Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E • D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 4?

▸ 3 S

johndoris 75 1 Reply

ssong07

2 years ago

Consider this proof, (1.) E D (2.) ~ (E D) O/ Ev~O (3.) [~ (E D) O] [O ~ (E D)] (4.) [O ...

[html]Consider this proof, (1.) E • D (2.) ~ (E • D) ≡ O/∴ Ev~O (3.) [~ (E • D) ⊃ O] • [O ⊃ ~ (E • D)] (4.) [O ⊃ ~(E•D)]• [~(E•D) ⊃ O] (5.) O ⊃ ~ (E • D) (6.) ~ ~ (E • D) (7.) ~ O (8.) ~ O v E (9.) E v ~ O What is the justification for line 3?

▸ 1,

jadelga3 67 1 Reply

marcospolos

2 years ago

Consider this proof, (1.) E [ ~ I (~ D v I)] / ~ D v F (2.) [ ~ I (~ D v I)] E (3.( ~ I (~ D v ...

[html]Consider this proof, (1.) E • [ ~ I • (~ D v I)] /∴ ~ D v F (2.) [ ~ I • (~ D v I)] • E (3.( ~ I • (~ D v I) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 7?

▸ 6, 4 DS

▸ 6, 4 HS

▸ 4, 5 MP

bmh12e 57 1 Reply

sherbiejr16

2 years ago

Consider this proof, (1.) E [ ~ I (~ D v I)] / ~ D v F (2.) [ ~ I (~ D v I)] E (3.( ~ I (~ D v ...

[html]Consider this proof, (1.) E • [ ~ I • (~ D v I)] /∴ ~ D v F (2.) [ ~ I • (~ D v I)] • E (3.( ~ I • (~ D v I) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 3?

▸ 2 Simp

▸ 1, 2 Com

▸ 1, 3 MP

jtfortwengler 58 1 Reply

dhk72

2 years ago

Consider this proof, (1.) E [ ~ I (~ D v I)] / ~ D v F (2.) [ ~ I (~ D v I)] E (3.( ~ I (~ D v ...

[html]Consider this proof, (1.) E • [ ~ I • (~ D v I)] /∴ ~ D v F (2.) [ ~ I • (~ D v I)] • E (3.( ~ I • (~ D v I) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 2?

▸ 1 Simp

▸ 1 Com

▸ 1 Add[/htm

Zergnet 66 1 Reply

jbee

2 years ago

Consider this proof, (1.) E [ ~ I (~ D v I)] / ~ D v F (2.) [ ~ I (~ D v I)] E (3.( ~ I (~ D v ...

[html]Consider this proof, (1.) E • [ ~ I • (~ D v I)] /∴ ~ D v F (2.) [ ~ I • (~ D v I)] • E (3.( ~ I • (~ D v I) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 6?

▸ 5 DN

▸ 5 Simp

▸ 4, 5 MT[/h

melisooflyy 59 1 Reply

hhorton

2 years ago

Consider this proof, (1.) E [ ~ I (~ D v I)] / ~ D v F (2.) [ ~ I (~ D v I)] E (3.( ~ I (~ D v ...

[html]Consider this proof, (1.) E • [ ~ I • (~ D v I)] /∴ ~ D v F (2.) [ ~ I • (~ D v I)] • E (3.( ~ I • (~ D v I) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 5?

▸ 3 Simp

▸ 3, 4 Add

▸ 3 Com[

hcraik2 57 1 Reply

dangoon

2 years ago

Consider this proof, (1.) E [ ~ I (~ D v I)] / ~ D v F (2.) [ ~ I (~ D v I)] E (3.( ~ I (~ D v ...

[html]Consider this proof, (1.) E • [ ~ I • (~ D v I)] /∴ ~ D v F (2.) [ ~ I • (~ D v I)] • E (3.( ~ I • (~ D v I) (4.) ~ I (5.) (~ D v I) • ~ I (6.) ~ D v I (7.) ~ D (8.) ~ D v F What is the justification for line 4?

▸ 1 Simp

▸ 3, 2 Cond

▸ 3 Sim

blankship 69 1 Reply

AdieMichelle

2 years ago

Consider this proof, (1.) 1. I (I E) (2.)I / I E (3.) [I (I E)] [(I E) I] (4.) I (I E) ...

Consider this proof, (1.) 1. I ≡ (I ⊃ E) (2.)I /∴ I ⊃ E (3.) [I ⊃ (I ⊃ E)] • [(I ⊃ E) ⊃ I] (4.) I ⊃ (I ⊃ E) (5.) I ⊃ E What is the justification for line 3?

▸ 1, 2 MT

▸ 1 Bicond

▸ 1 DeM

AL0354335 62 1 Reply

Hlh13

2 years ago

Consider this proof, (1.) ~IvE (2.) ~I E (3.) ~E / E (4.) I E (5.) ~E ~I (6.) ~E E (7.) E What ...

Consider this proof, (1.) ~IvE (2.) ~I ⊃ E (3.) ~E /∴ E (4.) I ⊃ E (5.) ~E ⊃ ~I (6.) ~E ⊃ E (7.) E What is the justification for line 4?

▸ 1 DS

▸ 1 Cond

▸ 2, 3 MT

gslwong 61 1 Reply

tranle311

2 years ago

Consider this proof, (1.) ~ A ( I v ~ D) (2.)~A~I / ~D (3.) ~ A (4.) I v ~ D (5.) ~ I ~ A (6.) ~ I ...

Consider this proof, (1.) ~ A ⊃ ( I v ~ D) (2.)~A•~I /∴ ~D (3.) ~ A (4.) I v ~ D (5.) ~ I • ~ A (6.) ~ I (7.) ~D What is the justification for line 3?

▸ 2 Simp

▸ 1 Simp

▸ 2 Com

jkim3464 60 1 Reply

amandashimkus

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

[html]Consider this proof, (1.) (~I ⊃ ~E) • (~E ⊃ E) (2.)~I /∴ I (3.) ~I ⊃ ~E (4.) ~ ~ E ⊃ ~ ~I (5.) E ⊃ I (6.) ~ E (7.) (~E ⊃ E) • (~I ⊃ ~E) (8.) ~E ⊃ E (9.) E (10.) ~ ~ E (11.) ~ ~ I (12.) I What is the justification for line 12?

▸ 11 Add

▸ 10, 8

kristen299 64 1 Reply

richardbugg

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

wasala18 58 1 Reply

wardasid

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

frustelle 63 1 Reply

timmcgraw1994

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

Bootyshaker 65 1 Reply

Dratini

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

Kiyaa 63 1 Reply

gagan17

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

hliz3 60 1 Reply

diana72g

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

dkwilson 67 1 Reply

dong

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

badd99 62 1 Reply

bluepeachez36

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

Student06 57 1 Reply

DPhoenix

2 years ago

Consider this proof, (1.) (~I ~E) (~E E) (2.)~I / I (3.) ~I ~E (4.) ~ ~ E ~ ~I (5.) E I (6.) ~ ...

capriciossa 52 1 Reply

denitra31

2 years ago

By applying the rule MP to ~ (A ~ D) (~B v A), ~ (A ~ D)? we can deduce

By applying the rule MP to “~ (A ∙ ~ D) ⊃ (~B v A), ~ (A ∙ ~ D)?” we can deduce

▸ ~B v A

▸ ~B ∙ A

▸ A ∙ ~D

gslwong 59 1 Reply

BAGrinder

2 years ago

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