English
Let $X$ be a spectral object of $C$ and $x$. Let $\mathrm{data}$ be a spectral sequence data of $c$ and $x_{5}$. Let $r$, $\mathrm{r'}$, $x_{11}$, $x_{12}$ and $x_{13}$ be elements of $\Integer$ such that $r + 1 = \mathrm{r'}$ and $x_{5} \leq r$. Let $\mathrm{pq'}$ and $\mathrm{pq''}$ be elements of $x_{1}$ such that $\EqtMACRoH {\operatorname{next} (c (r), \mathrm{pq'})}{\mathrm{pq''}}$. Let $x_{6}$, $x_{7}$, $x_{8}$, $x_{9}$ and $x_{10}$ be elements of $x$ such that $\EqtMACRoH {x_{6}}{\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequenceDataCore\_\_i\_u2080\_} (\mathrm{data} , \mathrm{r'} , \mathrm{pq'} , \mathrm{\_private\_\_Mathlib\_\_Algebra\_\_Homology\_\_SpectralObject\_\_SpectralSequence\_\_0\_\_\_proof\_27} (r , \mathrm{r'} , \mathrm{hrr'} , \mathrm{hr}))}$, $\EqtMACRoH {x_{7}}{\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequenceDataCore\_\_i\_u2080\_} (\mathrm{data} , r , \mathrm{pq'} , \mathrm{\_private\_\_Mathlib\_\_Algebra\_\_Homology\_\_SpectralObject\_\_SpectralSequence\_\_0\_\_\_proof\_28} (r , \mathrm{r'} , \mathrm{hrr'} , \mathrm{hr}))}$, $\EqtMACRoH {x_{8}}{\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequenceDataCore\_\_i\_u2081\_} (\mathrm{data} , \mathrm{pq'})}$, $\EqtMACRoH {x_{9}}{\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequenceDataCore\_\_i\_u2082\_} (\mathrm{data} , \mathrm{pq'})}$ and $\EqtMACRoH {x_{10}}{\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequenceDataCore\_\_i\_u2083\_} (\mathrm{data} , r , \mathrm{pq'} , \mathrm{\_private\_\_Mathlib\_\_Algebra\_\_Homology\_\_SpectralObject\_\_SpectralSequence\_\_0\_\_\_proof\_28} (r , \mathrm{r'} , \mathrm{hrr'} , \mathrm{hr}))}$. Assume that $x_{12}$ is equal to the degree of $\mathrm{data}$ and $\mathrm{pq'}$. Assume that $\mathrm{autoParam}$ holds for $\mathrm{Eq} (x_{11} + 1 , x_{12})$ and $\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequence\_\_HomologyData\_\_isLimitKf\_\_\_auto\_1}$. Assume that $\mathrm{autoParam}$ holds for $\mathrm{Eq} (x_{12} + 1 , x_{13})$ and $\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequence\_\_HomologyData\_\_isLimitKf\_\_\_auto\_3}$. Then $\operatorname{isLimitKf}$ applied to $X$, $\mathrm{data}$, $r$, $\mathrm{r'}$, $\mathrm{hrr'}$, $\mathrm{hr}$, $\mathrm{pq'}$, $\mathrm{pq''}$, $\mathrm{hpq'}$, $x_{6}$, $x_{7}$, $x_{8}$, $x_{9}$, $x_{10}$, $h$, $h_{1}$, $h_{2}$, $h_{3}$, $h_{4}$, $x_{11}$, $x_{12}$, $x_{13}$, $h_{5}$, $h_{7}$ and $h_{8}$ is an element of $\operatorname{IsLimit}$ applied to $\operatorname{kf}$ applied to $X$, $\mathrm{data}$, $r$, $\mathrm{r'}$, $\mathrm{hrr'}$, $\mathrm{hr}$, $\mathrm{pq'}$, $\mathrm{pq''}$, $x_{6}$, $x_{7}$, $x_{8}$, $x_{9}$, $x_{10}$, $h$, $h_{1}$, $h_{2}$, $h_{3}$, $h_{4}$, $x_{11}$, $x_{12}$, $x_{13}$, $h_{5}$, $h_{7}$ and $h_{8}$ defined as $\operatorname{fIsKernel}$ applied to $\mathrm{CategoryTheory\_\_Abelian\_\_SpectralObject\_\_SpectralSequence\_\_HomologyData\_\_kfSc\_exact}$ applied to $X$, $\mathrm{data}$, $r$, $\mathrm{r'}$, $\mathrm{hrr'}$, $\mathrm{hr}$, $\mathrm{pq'}$, $\mathrm{pq''}$, $\mathrm{hpq'}$, $x_{6}$, $x_{7}$, $x_{8}$, $x_{9}$, $x_{10}$, $h$, $h_{1}$, $h_{2}$, $h_{3}$, $h_{4}$, $x_{11}$, $x_{12}$, $x_{13}$, $h_{5}$, $h_{7}$ and $h_{8}$.