引理

yǐnlǐ
(math.) lemma

CEDICT

math

Entry Composition

1 引 yǐn
  1. to draw (e.g. a bow)
  2. to pull
  3. to stretch sth
  4. to extend
  5. to lengthen
  6. to involve or implicate in
  7. to attract
  8. to lead
  9. to guide
  10. to leave
  11. to provide evidence or justification for
  12. old unit of distance equal to 10 丈 zhàng, one-thirtieth of a km or 33.33 meters
2 理 lǐ
  1. texture
  2. grain (of wood)
  3. inner essence
  4. intrinsic order
  5. reason
  6. logic
  7. truth
  8. science
  9. natural science (esp. physics)
  10. to manage
  11. to pay attention to
  12. to run (affairs)
  13. to handle
  14. to put in order
  15. to tidy up