Unicode: 2260. Alias: Esc != Esc. Infix operator with built-in evaluation rules. x ≠ y is by default interpreted as Unequal[x,y].
Unicode: 03C9. Aliases: Esc o Esc, Esc omega Esc, Esc w Esc. Greek letter.
\[Or]
(Mathematica Character Name) Unicode: 2228. Aliases: Esc || Esc, Esc or Esc. Infix operator with built-in evaluation rules. x ∨ y is by default interpreted as Or[x,y], equivalent to x||y. Not the same as ...
Unicode: 00F8. Alias: Esc o/ Esc. Letter. Included in ISO Latin-1. Not the same as \[EmptySet].
Unicode: 2202. Alias: Esc pd Esc. Prefix operator with built-in evaluation rules. ∂_xy is by default interpreted as D[y,x]. ∂ is used in mathematics to indicate boundary. Esc ...
\[Phi]
(Mathematica Character Name) Unicode: 03D5. Aliases: Esc ph Esc, Esc phi Esc, Esc f Esc. Greek letter. Used in TraditionalForm for EulerPhi and GoldenRatio.
Unicode: 2032. Alias: Esc ' Esc. Letter-like form. Used to indicate angles in minutes or distances in feet. Used in an overscript position as an acute accent.
Unicode: 220F. Alias: Esc prod Esc. Compound operator with built-in evaluation rules. ∏_(i)^i_max(f) is by default interpreted as Product[f,{i,i_max}]. ∏_(i=i_min)^i_max(f) ...
Unicode: 221D. Alias: Esc prop Esc. Infix relational operator. x ∝ y is by default interpreted as Proportional[x,y]. Not the same as \[Alpha].
Unicode: 0020. Spacing character. Equivalent to the ordinary ASCII character with code 32.