Positive coverage: prove_syntactically_eq / existential-nonvar
existential-nonvar| Line | Coverage | Source |
|---|---|---|
| 167 | 1 | (prove_existential_var_eq(decls, env, assumptions, v, t) => c) |
| ──────── ("existential-nonvar") | ||
| 169 | 1 | (prove_syntactically_eq(decls, env, assumptions, Variable::ExistentialVar(v), t) => c) |
1 test exercised this rule:
Source location: crates/formality-rust/src/prove/test/eq_assumptions.rs:126 (all coverage from this test)
#[test]
fn test_normalize_assoc_ty_existential1() {
test_prove(
Program::empty(),
term(
"\
forall<T> \
exists<A> \
{ <T as Iterator>::Item = u32 } => { <A as Iterator>::Item = u32 }",
),
)
.assert_ok(expect!["{Constraints { env: Env { variables: [!ty_1, ?ty_2], bias: Soundness, pending: [], allow_pending_outlives: false }, known_true: true, substitution: {?ty_2 => !ty_1} }}"]);
}Proof tree
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_eq (normalize-l)prove_eq.rs:70args
prove_normalize (normalize-via-assumption)prove_normalize.rs:37args
prove_normalize_via (axiom-l)prove_normalize.rs:98args
prove_syntactically_eq (alias)prove_normalize.rs:162args
zipcombinators.rs:38prove_syntactically_eq (symmetric)prove_normalize.rs:144args
prove_syntactically_eq (existential-nonvar)prove_normalize.rs:168args
prove_existential_var_eq (existential-universal)prove_eq.rs:141args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (some)prove_predicate_list.rs:28args
prove_predicate (eq)prove_predicate.rs:116args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args
prove_after (prove_after)prove_after.rs:20args
prove_predicate_list (none)prove_predicate_list.rs:21args