等とう値ち

noun, noun which may take the genitive case particle 'no'

equal value; equivalence

Technical term used in mathematics, logic, and formal contexts to express that two things have the same value or are equivalent. Often used in the pattern 等値である or 等値の.

• これらの二ふたつの式しきは等とう値ちである。

  These two expressions are equivalent.

• 等とう値ちの概がい念ねんは数すう学がくの基き礎そで重じゅう要ようだ。

  The concept of equivalence is important in the foundations of mathematics.