Theoremsinl_mem_sumLexLift, inl_mem_sumLift₂, inr_mem_sumLexLift, inr_mem_sumLift₂, mem_sumLexLift, mem_sumLift₂, sumLexLift_eq_empty, sumLexLift_inl_inl, sumLexLift_inl_inr, sumLexLift_inr_inl, sumLexLift_inr_inr, sumLexLift_mono, sumLexLift_nonempty, sumLift₂_eq_empty, sumLift₂_mono, sumLift₂_nonempty, Icc_inl_inl, Icc_inl_inr, Icc_inr_inl, Icc_inr_inr, Ici_inl, Ici_inr, Ico_inl_inl, Ico_inl_inr, Ico_inr_inl, Ico_inr_inr, Iic_inl, Iic_inr, Iio_inl, Iio_inr, Ioc_inl_inl, Ioc_inl_inr, Ioc_inr_inl, Ioc_inr_inr, Ioi_inl, Ioi_inr, Ioo_inl_inl, Ioo_inl_inr, Ioo_inr_inl, Ioo_inr_inr, Icc_inl_inl, Icc_inl_inr, Icc_inr_inl, Icc_inr_inr, Ici_inl, Ici_inr, Ico_inl_inl, Ico_inl_inr, Ico_inr_inl, Ico_inr_inr, Iic_inl, Iic_inr, Iio_inl, Iio_inr, Ioc_inl_inl, Ioc_inl_inr, Ioc_inr_inl, Ioc_inr_inr, Ioi_inl, Ioi_inr, Ioo_inl_inl, Ioo_inl_inr, Ioo_inr_inl, Ioo_inr_inr | 64 |