const rtm = {
    eq: function(a, b) {
        return true
    },
    gt: function(a, b) {
        return false
    }
}

const concepts = [0, 1, 2, 3, 4, 5, 6];
const symbols = ['eq', '=', 'dataType']

const ops = {
    0: { L:'eq', D:'dataType', symbol:'=' }
}

function execPredicate(e, a, b) {
  return  rtm[ops[e].L](a, b);
}

console.log('ops', execPredicate(0, 6, 9));