ping-pong lemma
theorem about sufficient conditions for ensuring that that several elements in a group acting on a set freely generate a free subgroup of that group
Pronunciations
British English
/ˈpɪŋ - ˈpɒŋ ˈlɛmə/Open converterAmerican English
/ˈpɪŋ - pɑŋ ˈlɛmə/Open converter
These IPA transcriptions are generated from the name above. Proper names may have other pronunciations, and current converter results may differ. How transcription works