<noinclude>Twenty kinds of emptiness (Tib. སྟོང་ཉིད་ཉི་ཤུ་, tongnyi nyishu; Wyl. stong nyid nyi shu) — according to Mipham Rinpoche's Gateway to Knowledge [22:61 to 22:65], they are
the sixteen kinds of emptiness:
<noinclude>Sixteen kinds of emptiness, or shunyata (Skt. ṣoḍaśaśūnyatā; Tib. སྟོང་ཉིད་བཅུ་དྲུག་, tongnyi chudruk; Wyl. stong nyid bcu drug), which are mentioned in Chandrakirti's Madhyamakavatara:
</noinclude>#emptiness of the outer (Tib. ཕྱི་སྟོང་པ་ཉིད་, chi tongpa nyi, Wyl. phyi stong pa nyid)<br>
plus: :17. emptiness of the concrete (Tib. དངོས་པོ་སྟོང་པ་ཉིད་, ngöpo tongpa nyi, Wyl. dngos po stong pa nyid)<br> :18. emptiness of the inconcrete (Tib. དངོས་པོ་མེད་པའི་སྟོང་པ་ཉིད་, ngöpo mepe tongpa nyi, Wyl. dngos po med pa'i stong pa nyid)<br> :19. emptiness of nature or of identity (Tib. ངོ་བོ་ཉིད་སྟོང་པ་ཉིད་, ngowo nyi tongpa nyi, Wyl. ngo bo nyid stong pa nyid)<br> :20. emptiness of substance (Tib. གཞན་གྱི་དངོས་པོ་སྟོང་པ་ཉིད་, shengyi ngöpo tongpa nyi, Wyl. gzhan gyi dngos po stong pa nyid)<br>