kanxe -kax- gismu

x1 is a conjunction, stating that x2 (du'u) and x3 (du'u) are both true.

See also vlina.

In notes:

x1 is a logical alternation/disjunction, stating that x2 (du'u) and/or x3 (du'u) is/are true.
both statements x1 (du'u) and x2 (du'u) are true (logical conjunction)
v1 is an AND gate with input [pins] v2 and output [pins] v3 in circuit/system v4.
x1 is a connective question, requesting the connective between x2 (du'u) and x3 (du'u) in that order, assuming that they are true.
x1 is a logical 'NOT' statement resulting from the (multiplicative) negation of/applying the 'NOT' operator to x2 (du'u); x1 is the logical negation/negative of x2.
x1 is a logical statement that x2 (du'u) is true regardless of/irrespective of/independent of/whether or not x3 being/is true.
x1 is a material conditional/'IF' statement (logical statement) saying that x2 (du'u) logically implies x3 (du'u) ("x3 is true if x2 is true; if x2, then x3; x2 being true is sufficient to guarantee the truth of x3").
x1 is a logical XOR/mutual-contradiction/exclusive disjunction statement saying that only/exactly one of x2 and x3 can be true at any given time.
x1 is a logical statement of proposition-equivalence/is a biconditional/'IFF' statement saying that x2 (du'u) is true if and only if x3 is true ("x2 is logically equivalent to x3; x2 being true is sufficient and necessary for guaranteeing the truth of x3; x2 iff x3").