inductive Lean.Meta.ApplyNewGoals : Type

• nonDependentFirst: Lean.Meta.ApplyNewGoals
• nonDependentOnly: Lean.Meta.ApplyNewGoals
• all: Lean.Meta.ApplyNewGoals

Controls which new mvars are turned in to goals by the apply tactic.

• nonDependentFirst mvars that don't depend on other goals appear first in the goal list.
• nonDependentOnly only mvars that don't depend on other goals are added to goal list.
• all all unassigned mvars are added to the goal list.

structure Lean.Meta.ApplyConfig : Type

• newGoals : Lean.Meta.ApplyNewGoals
• synthAssignedInstances : Bool

  If synthAssignedInstances is true, then apply will synthesize instance implicit arguments even if they have assigned by isDefEq, and then check whether the synthesized value matches the one inferred. The congr tactic sets this flag to false.

• allowSynthFailures : Bool

  If allowSynthFailures is true, then apply will return instance implicit arguments for which typeclass search failed as new goals.

• approx : Bool

  If approx := true, then we turn on isDefEq approximations. That is, we use the approxDefEq combinator.

Configures the behaviour of the apply tactic.

def Lean.Meta.getExpectedNumArgsAux (e : Lean.Expr) : Lean.MetaM (Nat × Bool)

Compute the number of expected arguments and whether the result type is of the form (?m ...) where ?m is an unassigned metavariable.

def Lean.Meta.getExpectedNumArgs (e : Lean.Expr) : Lean.MetaM Nat

def Lean.Meta.synthAppInstances (tacticName : Lake.Name) (mvarId : Lean.MVarId) (newMVars : Array Lean.Expr) (binderInfos : Array Lean.BinderInfo) (synthAssignedInstances : Bool) (allowSynthFailures : Bool) : Lean.MetaM Unit

def Lean.Meta.appendParentTag (mvarId : Lean.MVarId) (newMVars : Array Lean.Expr) (binderInfos : Array Lean.BinderInfo) : Lean.MetaM Unit

def Lean.Meta.postprocessAppMVars (tacticName : Lake.Name) (mvarId : Lean.MVarId) (newMVars : Array Lean.Expr) (binderInfos : Array Lean.BinderInfo) (synthAssignedInstances : optParam Bool true) (allowSynthFailures : optParam Bool false) : Lean.MetaM Unit

If synthAssignedInstances is true, then apply will synthesize instance implicit arguments even if they have assigned by isDefEq, and then check whether the synthesized value matches the one inferred. The congr tactic sets this flag to false.

def Lean.MVarId.apply (mvarId : Lean.MVarId) (e : Lean.Expr) (cfg : optParam Lean.Meta.ApplyConfig { newGoals := Lean.Meta.ApplyNewGoals.nonDependentFirst, synthAssignedInstances := true, allowSynthFailures := false, approx := true }) : Lean.MetaM (List Lean.MVarId)

Close the given goal using apply e.

def Lean.MVarId.apply.go (mvarId : Lean.MVarId) (cfg : optParam Lean.Meta.ApplyConfig { newGoals := Lean.Meta.ApplyNewGoals.nonDependentFirst, synthAssignedInstances := true, allowSynthFailures := false, approx := true }) (targetType : Lean.Expr) (eType : Lean.Expr) (rangeNumArgs : Std.Range) (i : Nat) : Lean.MetaM (Array Lean.Expr × Array Lean.BinderInfo)

Equations

• One or more equations did not get rendered due to their size.

@[deprecated Lean.MVarId.apply]

def Lean.Meta.apply (mvarId : Lean.MVarId) (e : Lean.Expr) (cfg : optParam Lean.Meta.ApplyConfig { newGoals := Lean.Meta.ApplyNewGoals.nonDependentFirst, synthAssignedInstances := true, allowSynthFailures := false, approx := true }) : Lean.MetaM (List Lean.MVarId)

def Lean.Meta.splitAndCore (mvarId : Lean.MVarId) : Lean.MetaM (List Lean.MVarId)

partial def Lean.Meta.splitAndCore.go (tag : Lake.Name) (type : Lean.Expr) : StateRefT' IO.RealWorld (Array Lean.MVarId) Lean.MetaM Lean.Expr

@[inline, reducible]

abbrev Lean.MVarId.splitAnd (mvarId : Lean.MVarId) : Lean.MetaM (List Lean.MVarId)

Apply And.intro as much as possible to goal mvarId.

@[deprecated Lean.MVarId.splitAnd]

def Lean.Meta.splitAnd (mvarId : Lean.MVarId) : Lean.MetaM (List Lean.MVarId)

def Lean.MVarId.exfalso (mvarId : Lean.MVarId) : Lean.MetaM Lean.MVarId