℘	℘	℘	-- script capital P = power set = Weierstrass p
ℑ	ℑ	ℑ	-- blackletter capital I = imaginary part
ℜ	ℜ	ℜ	-- blackletter capital R = real part symbol
ℵ	ℵ	ℵ	-- alef symbol = first transfinite cardinal
←	←	←	-- leftwards arrow
↑	↑	↑	-- upwards arrow
→	→	→	-- rightwards arrow
↓	↓	↓	-- downwards arrow
↔	↔	↔	-- left right arrow
↵	↵	↵	-- downwards arrow with corner leftwards = carriage return
⇐	⇐	⇐	-- leftwards double arrow
⇑	⇑	⇑	-- upwards double arrow
⇒	⇒	⇒	-- rightwards double arrow
⇓	⇓	⇓	-- downwards double arrow
⇔	⇔	⇔	-- left right double arrow
∀	∀	∀	-- for all
∂	∂	∂	-- partial differential
∃	∃	∃	-- there exists
∅	∅	∅	-- empty set = null set = diameter
∇	∇	∇	-- nabla = backward difference
∈	∈	∈	-- element of
∉	∉	∉	-- not an element of
∋	∋	∋	-- contains as member
∗	∗	∗	-- asterisk operator
∝	∝	∝	-- proportional to
∞	∞	∞	-- infinity
∠	∠	∠	-- angle
∧	∧	∧	-- logical and = wedge
∨	∨	∨	-- logical or = vee
∩	∩	∩	-- intersection = cap
∪	∪	∪	-- union = cup
∴	∴	∴	-- therefore
∼	∼	∼	-- tilde operator = varies with = similar to
≅	≅	≅	-- approximately equal to
≡	≡	≡	-- identical to
⊂	⊂	⊂	-- subset of
⊃	⊃	⊃	-- superset of
⊄	⊄	⊄	-- not a subset of
⊆	⊆	⊆	-- subset of or equal to
⊇	⊇	⊇	-- superset of or equal to
⊕	⊕	⊕	-- circled plus = direct sum
⊗	⊗	⊗	-- circled times = vector product
⊥	⊥	⊥	-- up tack = orthogonal to = perpendicular
⋅	⋅	⋅	-- dot operator
⌈	⌈	⌈	-- left ceiling = apl upstile
⌉	⌉	⌉	-- right ceiling
⌊	⌊	⌊	-- left floor = apl downstile
⌋	⌋	⌋	-- right floor
⟨	〈	〈	-- left-pointing angle bracket = bra
⟩	〉	〉	-- right-pointing angle bracket = ket
			-- en space
			-- em space
			-- thin space
‎	‎	‎	-- left-to-right mark
‏	‏	‏	-- right-to-left mark