second order logicsecond-order logic二阶: second order逻辑: logic阶逻辑: order logicn阶逻辑: n order logic高阶逻辑: high order logic; higher order logic; higher-order logic; highor-order logic下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:二阶逻辑,即可在微信中查询翻译