⨹
PLUS SIGN IN TRIANGLE
U+2A39
⨺
MINUS SIGN IN TRIANGLE
U+2A3A
⨻
MULTIPLICATION SIGN IN TRIANGLE
U+2A3B
⨼
INTERIOR PRODUCT
U+2A3C
⨽
RIGHTHAND INTERIOR PRODUCT
U+2A3D
⨾
Z NOTATION RELATIONAL COMPOSITION
U+2A3E
⨿
AMALGAMATION OR COPRODUCT
U+2A3F
⩤
Z NOTATION DOMAIN ANTIRESTRICTION
U+2A64
⩥
Z NOTATION RANGE ANTIRESTRICTION
U+2A65