{"description":"\u4eca\u56de\u306f\u95a2\u6570\u306e\u6975\u9650\u306e\u8a3c\u660e\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002 $$\\lim_{x\\to 2} 2\\,x = 4\\hspace{20cm}$$ example : Tendsto (fun x:\u211d => 2*x) (\ud835\udcdd 2) (\ud835\udcdd 4) := by have cont_two_mul : Continuous (fun x : \u211d => 2 * x) := by exact continuous_const.mul continuous_id refine Continuous.tendsto' cont_two_mul 2 4 ?h -- \u22a2 2 * 2 = 4 linarith \u8a3c\u660e\u3059\u308b\u3079\u304d\u3053\u3068\u306f\u5f15\u6570\u3092\uff12\u500d\u306b\u3059\u308b\u2026","url":"https://maxima.hatenablog.jp/entry/2025/03/12/001000","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmaxima.hatenablog.jp%2Fentry%2F2025%2F03%2F12%2F001000\" title=\"-\u6570\u5b66- Lean4\u306e\u304a\u52c9\u5f37\u3000\u7c21\u5358\u306a\u95a2\u6570\u306e\u6975\u9650\u306e\u8a3c\u660e - Maxima \u3067\u7db4\u308b\u6570\u5b66\u306e\u65c5\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","height":"190","published":"2025-03-12 00:10:00","categories":["\u6570\u5b66"],"version":"1.0","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/j/jurupapa/20250227/20250227194847.jpg","title":"-\u6570\u5b66- Lean4\u306e\u304a\u52c9\u5f37\u3000\u7c21\u5358\u306a\u95a2\u6570\u306e\u6975\u9650\u306e\u8a3c\u660e","blog_title":"Maxima \u3067\u7db4\u308b\u6570\u5b66\u306e\u65c5","author_url":"https://blog.hatena.ne.jp/jurupapa/","width":"100%","type":"rich","blog_url":"https://maxima.hatenablog.jp/","author_name":"jurupapa"}