Date.Date.is_31: def of bend-time-lib@0.4.0.1
Import: import bend-time-lib@0.4.0.1/date.bend as Date
Lines 34-50 of bend-time-lib@0.4.0.1/date.bend: https://jend.leeeet.dev/read.txt?path=bend-time-lib@0.4.0.1/date.bend&start_line=34&end_line=50

import Base

def Date.is_31(+m: U32) -> Bool:
  Bool.or(
    U32.is_eq(m, 1),
    Bool.or(
      U32.is_eq(m, 3),
      Bool.or(
        U32.is_eq(m, 5),
        Bool.or(
          U32.is_eq(m, 7),
          Bool.or(
            U32.is_eq(m, 8),
            Bool.or(U32.is_eq(m, 10), U32.is_eq(m, 12))
          )
        )
      )
    )
  )

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.or
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.is_eq