Question

Does anyone know what branch of mathematics this biconditional is from or recognize the notation?

score 82 · Answer 1 · 2020-07-06 07:14:51

82

Views

Does anyone know what branch of mathematics this biconditional is from or recognize the notation?

Published on 06 Jul 2020 - 7:14

score 38 · Answer 2 · 2020-07-06 15:35:33

38

Views

Simplify (not $p$ and $q$) and (not $p$ or $q$)

Published on 06 Jul 2020 - 15:35

score 153 · Answer 3 · 2026-04-01 03:57:33

153

Views

Contexts in Natural Deduction

Published on 01 Apr 2026 - 3:57

score 115 · Answer 4 · 2026-03-25 11:16:31

115

Views

Converse of $(A\rightarrow(B\rightarrow C))\rightarrow((A\rightarrow B)\rightarrow(A\rightarrow C))$

Published on 25 Mar 2026 - 11:16

score 674 · Answer 5 · 2026-03-26 15:17:08

674

Views

Is law of excluded middle necessary in this proof?

Published on 26 Mar 2026 - 15:17

score 891 · Answer 6 · 2026-02-23 08:34:55

891

Views

Does double negation distribute over implication intuitionistically?

Published on 23 Feb 2026 - 8:34

score 83 · Answer 7 · 2026-04-01 04:38:19

83

Views

Writing down a symbolic logic proof of "there is a rational between two different rationals".

Published on 01 Apr 2026 - 4:38

score 176 · Answer 8 · 2026-03-26 15:16:47

176

Views

How is this done without conditional proof?

Published on 26 Mar 2026 - 15:16

score 174 · Answer 9 · 2020-07-15 18:27:29

174

Views

How to solve for $x$ given $x⇔A$ in a truth table?

Published on 15 Jul 2020 - 18:27

score 189 · Answer 10 · 2020-07-15 20:13:06

189

Views

True or false: Suppose $p$ and $q$ are propositions. Then $\lnot(p\implies q) \equiv p \land q.$

Published on 15 Jul 2020 - 20:13

score 69 · Answer 11 · 2020-07-17 00:31:38

69

Views

Proving $(Y\cap Z)\cup (X \cap Z ) \cup (X \cap Y )= ((Y \cup Z) − (\bar{X} \cap \bar{Z})) \cap (X \cup Y)$

Published on 17 Jul 2020 - 0:31

score 66 · Answer 12 · 2020-07-18 08:50:16

66

Views

Is $ P \implies \lnot P $ consistent in zeroth-order logic?

Published on 18 Jul 2020 - 8:50

score 82 · Answer 13 · 2026-03-25 12:49:42

82

Views

What is the conjunctive normal form for $(\neg Q\land P) \lor (\neg Q\land R) \lor (\neg P \land \neg R)$

Published on 25 Mar 2026 - 12:49

score 166 · Answer 14 · 2026-02-23 08:43:05

166

Views

How to derive ${ A \vdash C }$ from ${A \lor B \vdash C}$ in the sequent calculus LK?

Published on 23 Feb 2026 - 8:43

score 214 · Answer 15 · 2020-07-24 09:08:35

214

Views

When a set of propositions is said to be consistent?

Published on 24 Jul 2020 - 9:08

List Question

Does anyone know what branch of mathematics this biconditional is from or recognize the notation?

Simplify (not $p$ and $q$) and (not $p$ or $q$)

Contexts in Natural Deduction

Converse of $(A\rightarrow(B\rightarrow C))\rightarrow((A\rightarrow B)\rightarrow(A\rightarrow C))$

Is law of excluded middle necessary in this proof?

Does double negation distribute over implication intuitionistically?

Writing down a symbolic logic proof of "there is a rational between two different rationals".

How is this done without conditional proof?

How to solve for $x$ given $x⇔A$ in a truth table?

True or false: Suppose $p$ and $q$ are propositions. Then $\lnot(p\implies q) \equiv p \land q.$

Proving $(Y\cap Z)\cup (X \cap Z ) \cup (X \cap Y )= ((Y \cup Z) − (\bar{X} \cap \bar{Z})) \cap (X \cup Y)$

Is $ P \implies \lnot P $ consistent in zeroth-order logic?

What is the conjunctive normal form for $(\neg Q\land P) \lor (\neg Q\land R) \lor (\neg P \land \neg R)$

How to derive ${ A \vdash C }$ from ${A \lor B \vdash C}$ in the sequent calculus LK?

When a set of propositions is said to be consistent?

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