Question

Proof by induction of inadequacy of a propositional connective

score 115 · Answer 1 · 2026-03-31 14:32:28

115

Views

Proof by induction of inadequacy of a propositional connective

Published on 31 Mar 2026 - 14:32

score 56 · Answer 2 · 2020-03-14 01:49:14

56

Views

Is it $(E\land S\land C)\implies L$ or $L\implies(E\land S\land C)$?

Published on 14 Mar 2020 - 1:49

score 72 · Answer 3 · 2020-03-15 14:26:56

72

Views

Prove $((a \wedge b) \to c)\to (a \to (b \to c))$.

Published on 15 Mar 2020 - 14:26

score 602 · Answer 4 · 2026-03-26 07:34:46

602

Views

What exactly is the relationship between truth tables and rules of inference?

Published on 26 Mar 2026 - 7:34

score 67 · Answer 5 · 2026-03-25 22:03:50

67

Views

Is there a multidimensional analog to the Exclusive OR Boolean Operator? How to form an "exactly one from a set" expression?

Published on 25 Mar 2026 - 22:03

score 877 · Answer 6 · 2020-03-18 02:41:01

877

Views

Show that if Γ is complete, then it is maximal consistent (i.e. every set properly containing Γ is inconsistent)

Published on 18 Mar 2020 - 2:41

score 672 · Answer 7 · 2020-03-18 13:18:55

672

Views

Sheffer's and Peirce's functors

Published on 18 Mar 2020 - 13:18

score 121 · Answer 8 · 2026-03-25 17:39:35

121

Views

How to prove the following property of implication?

Published on 25 Mar 2026 - 17:39

score 88 · Answer 9 · 2020-03-18 18:42:30

Show that for any formula $\varphi$ in this language, exactly one of $\varphi$ and $\lnot\varphi$ is a logical consequence of $\Gamma$.

score 103 · Answer 10 · 2026-04-06 10:56:49

103

Views

Give a derivation of the following formal theorems:

Published on 06 Apr 2026 - 10:56

score 245 · Answer 11 · 2020-03-19 04:37:10

245

Views

How to prove the formal theorem using Ping-Pong $\vdash(( \phi\equiv\psi)\implies\theta[\phi/x])\equiv((\phi\equiv\psi)\implies\theta[\psi/x])$

Published on 19 Mar 2020 - 4:37

score 32 · Answer 12 · 2026-04-06 12:38:33

32

Views

Is this proof / assumption correct? Obtaining T from Q v R -> S, S -> T

Published on 06 Apr 2026 - 12:38

score 642 · Answer 13 · 2026-03-26 07:33:49

642

Views

Deriving a implies b from (not a) or b (formally: $\neg a \vee b\vdash a\rightarrow b$)

Published on 26 Mar 2026 - 7:33

score 42 · Answer 14 · 2020-03-20 13:51:17

42

Views

Propositional Logic: Conditional Proof

Published on 20 Mar 2020 - 13:51

score 246 · Answer 15 · 2020-03-20 23:27:30

246

Views

Why is a deductive closure an intersection of maximally consistent sets?

Published on 20 Mar 2020 - 23:27

List Question

Proof by induction of inadequacy of a propositional connective

Is it $(E\land S\land C)\implies L$ or $L\implies(E\land S\land C)$?

Prove $((a \wedge b) \to c)\to (a \to (b \to c))$.

What exactly is the relationship between truth tables and rules of inference?

Is there a multidimensional analog to the Exclusive OR Boolean Operator? How to form an "exactly one from a set" expression?

Show that if Γ is complete, then it is maximal consistent (i.e. every set properly containing Γ is inconsistent)

Sheffer's and Peirce's functors

How to prove the following property of implication?

Show that for any formula $\varphi$ in this language, exactly one of $\varphi$ and $\lnot\varphi$ is a logical consequence of $\Gamma$.

Give a derivation of the following formal theorems:

How to prove the formal theorem using Ping-Pong $\vdash(( \phi\equiv\psi)\implies\theta[\phi/x])\equiv((\phi\equiv\psi)\implies\theta[\psi/x])$

Is this proof / assumption correct? Obtaining T from Q v R -> S, S -> T

Deriving a implies b from (not a) or b (formally: $\neg a \vee b\vdash a\rightarrow b$)

Propositional Logic: Conditional Proof

Why is a deductive closure an intersection of maximally consistent sets?

Trending Questions

Popular # Hahtags

Popular Questions