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Math

Math​

ONE​

uint256 ONE

safeAdd​

function safeAdd(uint256 x, uint256 y) internal pure returns (uint256 z)

safeSub​

function safeSub(uint256 x, uint256 y) internal pure returns (uint256 z)

safeMul​

function safeMul(uint256 x, uint256 y) internal pure returns (uint256 z)

safeDiv​

function safeDiv(uint256 x, uint256 y) internal pure returns (uint256 z)

rmul​

function rmul(uint256 x, uint256 y) internal pure returns (uint256 z)

rdiv​

function rdiv(uint256 x, uint256 y) internal pure returns (uint256 z)

rdivup​

function rdivup(uint256 x, uint256 y) internal pure returns (uint256 z)