Every element of a free product has a unique expression in which each is a nonidentity element of one factor and adjacent syllables belong to different factors. The identity corresponds to the empty word.

Ancestors (9)

  1. Free product
  2. Amalgamated free product
  3. Seifert-van Kampen theorem
  4. Fundamental group
  5. Algebraic topology
  6. Geometry and topology
  7. Area of mathematics
  8. Mathematics
  9. Home

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