LetExpr.dfy(45,2): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.
LetExpr.dfy(206,4): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.
LetExpr.dfy(9,11): Error: assertion might not hold
LetExpr.dfy(109,22): Error: assertion might not hold
LetExpr.dfy(260,18): Error: value does not satisfy the subset constraints of 'nat'
LetExpr.dfy(263,18): Error: value does not satisfy the subset constraints of 'nat'
LetExpr.dfy(265,23): Error: value does not satisfy the subset constraints of 'nat'
LetExpr.dfy(294,13): Error: RHS is not certain to look like the pattern 'Agnes'
LetExpr.dfy(311,41): Error: value does not satisfy the subset constraints of 'nat'
LetExpr.dfy(313,11): Error: assertion might not hold
LetExpr.dfy(323,11): Error: to be compilable, the value of a let-such-that expression must be uniquely determined
LetExpr.dfy(340,18): Error: value does not satisfy the subset constraints of 'nat'
LetExpr.dfy(344,13): Error: value does not satisfy the subset constraints of 'nat'
LetExpr.dfy(390,33): Error: assertion might not hold
LetExpr.dfy(403,24): Error: assertion might not hold

Dafny program verifier finished with 37 verified, 13 errors
LetExpr.dfy.tmp.print.dfy(44,2): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.
LetExpr.dfy.tmp.print.dfy(279,4): Warning: Could not find a trigger for this quantifier. Without a trigger, the quantifier may cause brittle verification. To silence this warning, add an explicit trigger using the {:trigger} attribute. For more information, see the section quantifier instantiation rules in the reference manual.

Dafny program verifier did not attempt verification
