lean4-code-actions/libs/utils/number/NumberBasicArithmetic.ts

Refactorings and snippets for Lean 4

import { purry } from 'remeda'
import { BasicArithmetic } from '../arithmetic'

export const NumberBasicArithmetic: BasicArithmetic<number> = {
  zero: 0,
  one: 1,
  fromNumber(a) {
    return a
  },
  fromString(a) {
    return parseFloat(a)
  },
  add() {
    return purry((a: number, b: number) => a + b, arguments)
  },
  sub() {
    return purry((a: number, b: number) => a - b, arguments)
  },
  mul() {
    return purry((a: number, b: number) => a * b, arguments)
  },
  div() {
    return purry((a: number, b: number) => a / b, arguments)
  },
  mod() {
    return purry((a: number, b: number) => a % b, arguments)
  },
  min() {
    return purry((a: number, b: number) => a < b ? a : b, arguments)
  },
  max() {
    return purry((a: number, b: number) => a > b ? a : b, arguments)
  },
  abs(a: number) {
    return a < 0 ? -a : a
  },
  sqrt(a: number) {
    return Math.sqrt(a)
  },
  eq() {
    return purry((a: number, b: number) => a === b, arguments)
  },
  lt() {
    return purry((a: number, b: number) => a < b, arguments)
  },
  gt() {
    return purry((a: number, b: number) => a > b, arguments)
  },
  lte() {
    return purry((a: number, b: number) => a <= b, arguments)
  },
  gte() {
    return purry((a: number, b: number) => a >= b, arguments)
  },
}

export const { zero, one, fromNumber, fromString, add, sub, mul, div, mod, min, max, abs, sqrt, eq, lt, gt, lte, gte } = NumberBasicArithmetic