We consider two pairs of complete hereditary cotorsion theories\left (P, M\right),\left (M,
I\right) and\left (C, L\right)\left (L, E\right) on the category of left R-modules, such that P ⊂ C …

We consider two pairs of complete hereditary cotorsion theories (P, M),(M, I), and (C, L),(L,
E) on the category of left R-modules, such that P⊂ C. We prove that for any left R-modules …

We consider two pairs of complete hereditary cotorsion theories < img src="/fulltext-image.
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. We consider two pairs of complete hereditary cotorsion theories $${\left ({\mathcal
{P},\mathcal {M}}\right)},{\left ({\mathcal {M},\mathcal {I}}\right)}\;{\text {and}}\;{\left ({\mathcal …