UNICODES in HTML    With pics how it looks with FireFox :               

∀	∀		≀	≀		⊀	⊀		⋀	⋀		▀	▀		◀	◀
∁	∁		≁	≁		⊁	⊁		⋁	⋁		▁	▁		◁	◁
∂	∂		≂	≂		⊂	⊂		⋂	⋂		▂	▂		◂	◂
∃	∃		≃	≃		⊃	⊃		⋃	⋃		▃	▃		◃	◃
∄	∄		≄	≄		⊄	⊄		⋄	⋄		▄	▄		◄	◄
∅	∅		≅	≅		⊅	⊅		⋅	⋅		▅	▅		◅	◅
∆	∆		≆	≆		⊆	⊆		⋆	⋆		▆	▆		◆	◆
∇	∇		≇	≇		⊇	⊇		⋇	⋇		▇	▇		◇	◇
∈	∈		≈	≈		⊈	⊈		⋈	⋈		█	█		◈	◈
∉	∉		≉	≉		⊉	⊉		⋉	⋉		▉	▉		◉	◉
∊	∊		≊	≊		⊊	⊊		⋊	⋊		▊	▊		◊	◊
∋	∋		≋	≋		⊋	⊋		⋋	⋋		▋	▋		○	○
∌	∌		≌	≌		⊌	⊌		⋌	⋌		▌	▌		◌	◌
∍	∍		≍	≍		⊍	⊍		⋍	⋍		▍	▍		◍	◍
∎	∎		≎	≎		⊎	⊎		⋎	⋎		▎	▎		◎	◎
∏	∏		≏	≏		⊏	⊏		⋏	⋏		▏	▏		●	●
∐	∐		≐	≐		⊐	⊐		⋐	⋐		▐	▐		◐	◐
∑	∑		≑	≑		⊑	⊑		⋑	⋑		░	░		◑	◑
−	−		≒	≒		⊒	⊒		⋒	⋒		▒	▒		◒	◒
∓	∓		≓	≓		⊓	⊓		⋓	⋓		▓	▓		◓	◓
∔	∔		≔	≔		⊔	⊔		⋔	⋔		▔	▔		◔	◔
∕	∕		≕	≕		⊕	⊕		⋕	⋕		▕	▕		◕	◕
∖	∖		≖	≖		⊖	⊖		⋖	⋖		▖	▖		◖	◖
∗	∗		≗	≗		⊗	⊗		⋗	⋗		▗	▗		◗	◗
∘	∘		≙	≙		⊘	⊘		⋘	⋘		▘	▘		◘	◘
∙	∙		≙	≙		⊙	⊙		⋙	⋙		▙	▙		◙	◙
√	√		≚	≚		⊚	⊚		⋚	⋚		▚	▚		◚	◚
∛	∛		≛	≛		⊛	⊛		⋛	⋛		▛	▛		◛	◛
∜	∜		≝	≝		⊜	⊜		⋜	⋜		▜	▜		◜	◜
∝	∝		≝	≝		⊝	⊝		⋝	⋝		▝	▝		◝	◝
∞	∞		≞	≞		⊞	⊞		⋞	⋞		▞	▞		◞	◞
∟	∟		≟	≟		⊟	⊟		⋟	⋟		▟	▟		◟	◟
∠	∠		≠	≠		⊠	⊠		⋠	⋠		■	■		◠	◠
∡	∡		≡	≡		⊡	⊡		⋡	⋡		□	□		◡	◡
∢	∢		≢	≢		⊢	⊢		⋢	⋢		▢	▢		◢	◢
∣	∣		≣	≣		⊣	⊣		⋣	⋣		▣	▣		◣	◣
∤	∤		≤	≤		⊤	⊤		⋤	⋤		▤	▤		◤	◤
∥	∥		≥	≥		⊥	⊥		⋥	⋥		▥	▥		◥	◥
∦	∦		≦	≦		⊦	⊦		⋦	⋦		▦	▦		◦	◦
∧	∧		≧	≧		⊧	⊧		⋧	⋧		▧	▧		◧	◧
∨	∨		≩	≩		⊨	⊨		⋨	⋨		▨	▨		◨	◨
∩	∩		≩	≩		⊩	⊩		⋩	⋩		▩	▩		◩	◩
∪	∪		≪	≪		⊪	⊪		⋪	⋪		▪	▪		◪	◪
∫	∫		≫	≫		⊫	⊫		⋫	⋫		▫	▫		◫	◫
∬	∬		≭	≭		⊬	⊬		⋬	⋬		▬	▬		◬	◬
∭	∭		≭	≭		⊭	⊭		⋭	⋭		▭	▭		◭	◭
∮	∮		≮	≮		⊮	⊮		⋮	⋮		▮	▮		◮	◮
∯	∯		≯	≯		⊯	⊯		⋯	⋯		▯	▯		◯	◯
∰	∰		≰	≰		⊰	⊰		⋰	⋰		▰	▰		—	—
∱	∱		≱	≱		⊱	⊱		⋱	⋱		▱	▱		―	―
∲	∲		≲	≲		⊲	⊲		⋲	⋲		▲	▲		‖	‖
∳	∳		≳	≳		⊳	⊳		⋳	⋳		△	△		‗	‗
∴	∴		≴	≴		⊴	⊴		⋴	⋴		▴	▴		†	†
∵	∵		≵	≵		⊵	⊵		⋵	⋵		▵	▵		‡	‡
∶	∶		≶	≶		⊶	⊶		╱	╱		▶	▶		•	•
∷	∷		≷	≷		⊷	⊷		╲	╲		▷	▷		‰	‰
∸	∸		≸	≸		⊸	⊸		╳	╳		▸	▸		‱	‱
∹	∹		≹	≹		⊹	⊹		╷	╷		▹	▹		※	※
∺	∺		≺	≺		⊺	⊺		╹	╹		►	►		‼	‼
∻	∻		≻	≻		⊻	⊻		┇	┇		▻	▻		‽	‽
∼	∼		≼	≼		⊼	⊼		┉	┉		▼	▼		⁂	⁂
∽	∽		≽	≽		⊽	⊽		┊	┊		▽	▽		…	…
∾	∾		≾	≾		⊾	⊾		┋	┋		▾	▾		‴	‴
∿	∿		≿	≿		⊿	⊿		╏	╏		▿	▿		‷	‷
₠	₠		₡	₡		₢	₢		₣	₣		₤	₤		₥	₥
₦	₦		₧	₧		₨	₨		₩	₩		₪	₪		₫	₫
€	€		⅓	⅓		⅔	⅔		⅕	⅕		⅖	⅖		⅗	⅗
⅘	⅘		⅙	⅙		⅚	⅚		⅛	⅛		⅜	⅜		⅝	⅝
⅞	⅞		⅟	⅟		⅚	⅚		➀	➀		➁	➁		➂	➂
➃	➃		➄	➄		➅	➅		➆	➆		➇	➇		➈	➈
➉	➉		➊	➊		➋	➋		➌	➌		➍	➍		➎	➎
➏	➏		➐	➐		➑	➑		➒	➒		➓	➓		➔	➔
➘	➘		➚	➚		➢	➢		➲	➲		➸	➸		❍	❍
✂	✂		✈	✈		✍	✍		✎	✎		✓	✓		✔	✔
✗	✗		✘	✘		✙	✙		✚	✚		✛	✛		✜	✜
✡	✡		✢	✢		✣	✣		✤	✤		✥	✥		✫	✫
✬	✬		✭	✭		✮	✮		✯	✯		✰	✰		✳	✳
✴	✴		✵	✵		✶	✶		✷	✷		✸	✸		✹	✹
✿	✿		❄	❄		❏	❏		❐	❐		❑	❑		❒	❒
❖	❖		❙	❙		❢	❢		ℰ	ℰ		ℱ	ℱ		Ⅎ	Ⅎ
℀	℀		℁	℁		ℂ	ℂ		℃	℃		℄	℄		℅	℅
℆	℆		ℇ	ℇ		℈	℈		℉	℉		ℊ	ℊ		ℋ	ℋ
ℌ	ℌ		ℍ	ℍ		ℎ	ℎ		ℏ	ℏ		ℐ	ℐ		ℑ	ℑ
ℒ	ℒ		ℓ	ℓ		℔	℔		ℕ	ℕ		№	№		℗	℗
℘	℘		ℙ	ℙ		ℚ	ℚ		ℛ	ℛ		ℜ	ℜ		ℝ	ℝ
℞	℞		℟	℟		℠	℠		℡	℡		™	™		℣	℣
ℤ	ℤ		℥	℥		Ω	Ω		℧	℧		ℨ	ℨ		℩	℩
K	K		Å	Å		ℬ	ℬ		ℭ	ℭ		℮	℮		ℯ	ℯ
←	←		↑	↑		→	→		↓	↓		↔	↔		↕	↕
↖	↖		↗	↗		↘	↘		↙	↙		↚	↚		↛	↛
↜	↜		↝	↝		↞	↞		↟	↟		↠	↠		↡	↡
↢	↢		↣	↣		↤	↤		↥	↥		↦	↦		↧	↧
↨	↨		↩	↩		↪	↪		↫	↫		↬	↬		↭	↭
↮	↮		↯	↯		↰	↰		↱	↱		↲	↲		↳	↳
↴	↴		↵	↵		↶	↶		↷	↷		↸	↸		↹	↹
↺	↺		↻	↻		↼	↼		↽	↽		↾	↾		↿	↿
⇀	⇀		⇁	⇁		⇂	⇂		⇃	⇃		⇄	⇄		⇅	⇅
⇆	⇆		⇇	⇇		⇈	⇈		⇉	⇉		⇊	⇊		⇋	⇋
⇍	⇍		⇎	⇎		⇏	⇏		⇐	⇐		⇒	⇒		⇓	⇓
⇔	⇔		⇕	⇕		⇖	⇖		⇗	⇗		⇘	⇘		⇙	⇙
⇚	⇚		⇛	⇛		⇜	⇜		⇝	⇝		⇞	⇞		⇟	⇟
⇠	⇠		⇡	⇡		⇢	⇢		⇣	⇣		⇤	⇤		⇥	⇥
⇦	⇦		⇧	⇧		⇨	⇨		⇩	⇩		⇪	⇪		⌂	⌂
⌆	⌆		⌈	⌈		⌉	⌉		⌊	⌊		⌋	⌋		⌐	⌐
⌠	⌠		⌡	⌡		⌢	⌢		⌣	⌣		〈	〈		〉	〉