Logical

The logical then

The logical then
  1. What is the logical symbol for then?
  2. What is equivalent to P → Q?
  3. What does ⊢ mean in logic?
  4. What are the 5 logical connectives?

What is the logical symbol for then?

Implication: →, –>: implies, if … , then … . Biconditional: ↔, : if and only if. Logical equivalence: ≡

What is equivalent to P → Q?

Implications are Disjunctions.

P → Q is logically equivalent to ¬ P ∨ Q .

What does ⊢ mean in logic?

In mathematical logic and computer science the symbol ⊢ ( ) has taken the name turnstile because of its resemblance to a typical turnstile if viewed from above. It is also referred to as tee and is often read as "yields", "proves", "satisfies" or "entails".

What are the 5 logical connectives?

Commonly used connectives include “but,” “and,” “or,” “if . . . then,” and “if and only if.” The various types of logical connectives include conjunction (“and”), disjunction (“or”), negation (“not”), conditional (“if . . . then”), and biconditional (“if and only if”).

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