Union
$$A \cup B =$$
{ Biochemistry, Biology/Microbiology, Botany, Chemistry, Earth Science/Life Science, Ecology, Geology, Meteorology, Oceanography, Physics/Cosmology, Space Science, Zoology, antithesis, synthesis, thesis }
Symmetric Difference
$$A \ominus B =$$
{ Biochemistry, Biology/Microbiology, Botany, Chemistry, Earth Science/Life Science, Ecology, Geology, Meteorology, Oceanography, Physics/Cosmology, Space Science, Zoology, antithesis, synthesis, thesis }
Difference
$$B - A =$$
{ Biochemistry, Biology/Microbiology, Botany, Chemistry, Earth Science/Life Science, Ecology, Geology, Meteorology, Oceanography, Physics/Cosmology, Space Science, Zoology }
Cartesian Product
$$A \times B =$$
{ (antithesis, Biochemistry),
(antithesis, Biology/Microbiology),
(antithesis, Botany),
(antithesis, Chemistry),
(antithesis, Earth Science/Life Science),
(antithesis, Ecology),
(antithesis, Geology),
(antithesis, Meteorology),
(antithesis, Oceanography),
(antithesis, Physics/Cosmology),
(antithesis, Space Science),
(antithesis, Zoology),
(synthesis, Biochemistry),
(synthesis, Biology/Microbiology),
(synthesis, Botany),
(synthesis, Chemistry),
(synthesis, Earth Science/Life Science),
(synthesis, Ecology),
(synthesis, Geology),
(synthesis, Meteorology),
(synthesis, Oceanography),
(synthesis, Physics/Cosmology),
(synthesis, Space Science),
(synthesis, Zoology),
(thesis, Biochemistry),
(thesis, Biology/Microbiology),
(thesis, Botany),
(thesis, Chemistry),
(thesis, Earth Science/Life Science),
(thesis, Ecology),
(thesis, Geology),
(thesis, Meteorology),
(thesis, Oceanography),
(thesis, Physics/Cosmology),
(thesis, Space Science),
(thesis, Zoology) }
Georg Wilhelm Friedrich Hegel