2 ȷȷ LATIN SMALL LETTER DOTLESS J
4 ΓΓ GREEK CAPITAL LETTER GAMMA
5 ΣΣ GREEK CAPITAL LETTER SIGMA
6 ‾‾ OVERLINE
7 ℏℏℏ PLANCK CONSTANT OVER TWO PI
8 ℘℘ SCRIPT CAPITAL P
9 ↕↕ UP DOWN ARROW
10 ⇕⇕ UP DOWN DOUBLE ARROW
12 ∉∉ NOT AN ELEMENT OF
13 ∏∏ N-ARY PRODUCT
14 ∐∐ N-ARY COPRODUCT
15 ∑∑ N-ARY SUMMATION
16 ⊄⊄ NOT A SUBSET OF
17 ⊅⊅ NOT A SUPERSET OF
18 ⎛⎛ LEFT PARENTHESIS UPPER HOOK
19 ⎜⎜ LEFT PARENTHESIS EXTENSION
20 ⎝⎝ LEFT PARENTHESIS LOWER HOOK
21 ⎞⎞ RIGHT PARENTHESIS UPPER HOOK
22 ⎟⎟ RIGHT PARENTHESIS EXTENSION
23 ⎠⎠ RIGHT PARENTHESIS LOWER HOOK
24 ⎡⎡ LEFT SQUARE BRACKET UPPER CORNER
25 ⎢⎢ LEFT SQUARE BRACKET EXTENSION
26 ⎣⎣ LEFT SQUARE BRACKET LOWER CORNER
27 ⎤⎤ RIGHT SQUARE BRACKET UPPER CORNER
28 ⎥⎥ RIGHT SQUARE BRACKET EXTENSION
29 ⎦⎦ RIGHT SQUARE BRACKET LOWER CORNER
30 ⎧⎧ LEFT CURLY BRACKET UPPER HOOK
31 ⎨⎨ LEFT CURLY BRACKET MIDDLE PIECE
32 ⎩⎩ LEFT CURLY BRACKET LOWER HOOK
33 ⎪⎪⎪⎪ CURLY BRACKET EXTENSION
34 ⎫⎫ RIGHT CURLY BRACKET UPPER HOOK
35 ⎬⎬ RIGHT CURLY BRACKET MIDDLE PIECE
36 ⎭⎭ RIGHT CURLY BRACKET LOWER HOOK
37 ♠♠ BLACK SPADE SUIT
38 ♣♣ BLACK CLUB SUIT
39 ♥♥ BLACK HEART SUIT
40 ♦♦ BLACK DIAMOND SUIT
41 ✓✓ CHECK MARK