fix merge

Author: vihdzp

Mathlib/SetTheory/Cardinal/Basic.lean

@@ -850,11 +850,11 @@ alias isSuccLimit_zero := isSuccPrelimit_zero
 
 end deprecated
 
-/-- A cardinal is a strong limit if it is not zero and it is closed under powersets. Note that `ℵ₀`
-is a strong limit by this definition. -/
+/-- A cardinal is a strong limit if it is not zero and it is closed under powersets.
+Note that `ℵ₀` is a strong limit by this definition. -/
 structure IsStrongLimit (c : Cardinal) : Prop where
   ne_zero : c ≠ 0
-  two_power_lt {x} : x < c → 2 ^ x < c
+  two_power_lt ⦃x⦄ : x < c → 2 ^ x < c
 
 protected theorem IsStrongLimit.isSuccLimit {c} (H : IsStrongLimit c) : IsSuccLimit c := by
   rw [Cardinal.isSuccLimit_iff]

Mathlib/SetTheory/Cardinal/Cofinality.lean

@@ -806,7 +806,7 @@ theorem mk_bounded_subset {α : Type*} (h : ∀ x < #α, 2 ^ x < #α) {r : α 
     constructor
     rintro ⟨s, hs⟩
     exact (not_unbounded_iff s).2 hs (unbounded_of_isEmpty s)
-  have h' : IsStrongLimit #α := ⟨ha, @h⟩
+  have h' : IsStrongLimit #α := ⟨ha, h⟩
   have ha := h'.aleph0_le
   apply le_antisymm
   · have : { s : Set α | Bounded r s } = ⋃ i, 𝒫{ j | r j i } := setOf_exists _
@@ -831,7 +831,7 @@ theorem mk_subset_mk_lt_cof {α : Type*} (h : ∀ x < #α, 2 ^ x < #α) :
     #{ s : Set α // #s < cof (#α).ord } = #α := by
   rcases eq_or_ne #α 0 with (ha | ha)
   · simp [ha]
-  have h' : IsStrongLimit #α := ⟨ha, @h⟩
+  have h' : IsStrongLimit #α := ⟨ha, h⟩
   rcases ord_eq α with ⟨r, wo, hr⟩
   haveI := wo
   apply le_antisymm
@@ -1146,7 +1146,7 @@ def IsInaccessible (c : Cardinal) :=
 
 theorem IsInaccessible.mk {c} (h₁ : ℵ₀ < c) (h₂ : c ≤ c.ord.cof) (h₃ : ∀ x < c, 2 ^ x < c) :
     IsInaccessible c :=
-  ⟨h₁, ⟨h₁.le, h₂⟩, (aleph0_pos.trans h₁).ne', @h₃⟩
+  ⟨h₁, ⟨h₁.le, h₂⟩, (aleph0_pos.trans h₁).ne', h₃⟩
 
 -- Lean's foundations prove the existence of ℵ₀ many inaccessible cardinals
 theorem univ_inaccessible : IsInaccessible univ.{u, v} :=