What the summary says.
These codepoints are required when writing programs in Agda.
The codepoint are missing in the master repository (commit https://github.com/dejavu-fonts/dejavu-fonts/commit/8faf254fa4d74194641494ecc3f1404078269e9d).
I'd also like to see these characters in Mono. Recently, 22C2 ⋂ and 22C3 ⋃ were added. These are big unary variants of set operations of intersection and union (2229 ∩ and 222A ∪). Similarly, 22C0 ⋀ and 22C1 ⋁ are big unary variants of general lattice operations of meet and join (2227 ∧, 2228 ∨).