đối hợp

Hai đường thẳng đối hợp cắt nhau tại một điểm.

Definition

1. Noun:

   • Involution: In mathematics, an operation that, when applied twice, returns the original element. It is a specific type of function or transformation that is its own inverse.

2. Noun:

   • Correspondence / Pairing: The act or state of being matched, paired, or set in a complementary or opposing relationship between two elements.

Usage Examples

• Noun (Mathematics):
  • Phép biến đổi này là một phép đối hợp. (This transformation is an involution.)
• Noun (General):
  • Cần có sự đối hợp giữa hai bộ phận. (There needs to be a correspondence between the two parts.)

Advanced Usage

• Used in formal, academic, or technical contexts, particularly in mathematics, logic, and systems theory.

Variants and Related Words

• Đối hợp tử (n): Involutory element; an element that is its own inverse under a given operation.
• Tính đối hợp (n): The property of being involutive.

Synonyms

• Involution (in mathematics).
• Correspondence.
• Pairing.

Related Terms

• Phép đối hợp (n): Involutory operation.
• Quan hệ đối hợp (n): Involutory relation.