unicode: mathematic (set) comparison operators

[sheet.git] / unicode.inc.pl

diff --git a/unicode.inc.pl b/unicode.inc.pl
index ddfece1026162323408c2f5e2f6ce08ed3952081..a960f3554c7918f95a20e1d26a18616537993104 100644 (file)
--- a/unicode.inc.pl
+++ b/unicode.inc.pl
@@ -11,6 +11,7 @@ symbols => {
        binary   => [qw{. ⚋ ⚊ . ⚐ ⚑ . ☺ ☹ . ✓ ✗ . ✔ ✘ . ◄ ► }], # opposites
        currency => [qw{. ¤ ¢ ₥ € £ ₨ $ ¥ . ฿ ₫ ₭ ₦ ₱ ₮ ₩ ₪}],
        cards    => [qw{. ♠ ♡ ♢ ♣ . ♤ ♥ ♦ ♧}],
+       chess    => [qw{. ♙ ♘ ♗ ♖ ♕ ♔ . ♟ ♞ ♝ ♜ ♛ ♚ }],
        signs1   => [qw{. ☮ ☯ ☻ ♪ ♲ ♿ }],
        signs2   => [qw{. ⚠ ☡ ☠}],
        communic => [qw{. ✂ ✉ ℻ ☎ ☏ . 🔞 🔾 🔰 🔮 🕀 }],
@@ -33,6 +34,12 @@ keys => {
        player   => [qw{. ► ⏩ ⏭ ◼ ⚫ . ◄ ⏪ ⏮ ⏏ -❚❚ }],
 },
 
+math => {
+       equal    => [qw{. ∼ ≈ ≅ ≡ ∃ . ≁ ≉ ≇ ≢ ∄ }],
+       size     => [qw{. ≪ < ≤ \= ≥ \> ≫ . - ≮ ≰ ≠ ≱ ≯ - }],
+       set      => [qw{. ∈ ⊂ ⊆ ∀ ⊇ ⊃ ∋ ∪ . ∉ ⊄ ⊈ ∅ ⊉ ⊅ ∌ ∩ }],
+},
+
 arrows => {
        single   => [qw{. ↖ ↑ ↗ ↔ . ← - → ↕ . ↙ ↓ ↘ - }],
        double   => [qw{. ⇖ ⇑ ⇗ ⇔ . ⇐ - ⇒ ⇕ . ⇙ ⇓ ⇘ - }],