{{code|Mathematical Alphanumeric Symbols}}. Instead of {{cmd|definefallbackfamily}} which was used in the previous example, this document uses the command {{cmd|definefontfallback}}. The ConTeXt name of the block is supplied as the last setup of this command.
We will denoteHere is a bestiary of mathematical letters: \startformula𝒜, 𝒞, 𝒟, 𝒢, 𝒥, 𝒦, 𝒪, for any smooth manifold $M$𝒫, the sheaf of real smooth functions on $M$𝒬, 𝒮, 𝒯, 𝒰, 𝒱, 𝒲, 𝒳, 𝒴, by $𝒮_M$.𝒵\stopformula