LaTex

Set theory symbols[∅,∪,∩] in LaTeX

Angle symbols[⊾,∠,∟] in LaTeX

Semidirect product symbols[⋉,⋊,⋋,⋌] in LaTeX

Set membership symbols[∈,∉,∋ ] in LaTeX

Prime symbol[𝑓,𝑓‶] in LaTeX