div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader039fdocumentsusreader039viewer20220402055f1790c338375b4d250a32e0html5page1jpg target=_blank img data-url=documentharvard-mathematics-department-home-mathematical-problems-or-puzzles-are-importanthtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: Harvard Mathematics Department : Home pagepeoplemathharvardeduTaoSolvingMathProblemspdf · Mathematical problems or puzzles are important to real mathematics like solving loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader039fdocumentsusreader039viewer20220402055f1790c338375b4d250a32e0html5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader039fdocumentsusreader039viewer20220402055f1790c338375b4d250a32e0html5page2jpg target=_blank img data-url=documentharvard-mathematics-department-home-mathematical-problems-or-puzzles-are-importanthtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: Harvard Mathematics Department : Home pagepeoplemathharvardeduTaoSolvingMathProblemspdf · Mathematical problems or puzzles are important to real mathematics like solving loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader039fdocumentsusreader039viewer20220402055f1790c338375b4d250a32e0html5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader039fdocumentsusreader039viewer20220402055f1790c338375b4d250a32e0html5page3jpg target=_blank img data-url=documentharvard-mathematics-department-home-mathematical-problems-or-puzzles-are-importanthtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: Harvard Mathematics Department : Home...