< > ≤ ≥ ⩽ ⩾ (default font).

< > ≤ ≥ ⩽ ⩾ (sans-serif font).

< > ≤ ≥ ⩽ ⩾ (serif font).

< > ≤ ≥ ⩽ ⩾ (DejaVu Sans).

< > ≤ ≥ ⩽ ⩾ (DejaVu Serif).