Theoremschain'_getLast_head_splitBy, chain'_of_mem_splitBy, flatten_splitBy, getLast_getLast_splitBy, head_head_splitBy, isChain_getLast_head_splitBy, isChain_of_mem_splitBy, ne_nil_of_mem_splitBy, nil_notMem_splitBy, splitBy_append, splitBy_append_cons, splitBy_eq_iff, splitBy_eq_nil, splitBy_flatten, splitBy_ne_nil, splitBy_nil, splitBy_of_isChain | 17 |