Agda will replace the question mark with a "hole" which can be filled in later. One can also do various other things in the context of a hole: listing the context, inferring the type of an expression type expected in the current hole, along with the types of locally defined identifiers. C−C C−. A variant of C−C C−, that also tries to infer the type of the current hole’s contents. C−C C−SPC Give. written in the current hole has the right type and, if it does, replaces the hole with that term. C-c C-r Refine. Checks whether the return type of the expression e in the hole matches the expected type

tracks and vias … 69 Routing differential pairs … 90 Length tuning … 90 Teardrops … 99 Backdrills and hole post-machining (counterbores/countersinks) … 102 Graphics and text … 106 Rule areas (keepouts) … 128 connection width: 0 mm
Minimum annular width: 0.075 mm
Minimum via diameter: 0.45 mm
Copper to hole clearance: 0.2 mm
Copper to edge clearance: 0.372 mmMaximum allowed deviation: 0.005 filling can be slow when < 0.005 mm.HolesMinimum drill size: 0.3 mm
Hole to hole clearance: 0.25 mmZone Fill Strategy
Allow fillets/chamfers outside zone outline
Minimum

Stackup
Board Finish
Solder Mask/PasteWidthDiameterHoleWidthGapVia Gap0.3 mm0.45 either the Schematic or Board Setup dialogs. Name Clearance Track Width Via Size Via Hole μVia Size uVia Hole DP Width DP Gap POWER 0.15 mm 0.4 mm 0.8 mm 0.4 mm 0.3 mm 0.1 mm 0.2 mm 0.25 mm Default needs to remain unsoldered in a specific design, or you may wish to move the location of a through-hole pad for an axial-lead resistor in order to fit a specific design. NOTE By default, the position of

Pre-defined SizesHole clearance violation:ErrorWarningIgnore RulesHole size out of range:ErrorWarningIgnoreViolation SeverityMicro via hole size out of DIP:DIP-14_W7.62mm_LongPads☐Library Description14-lead though-hole mounted DIP package☐KeywordsTHT DIP DIL PDIP 2.54mm 7.62mm 30

Pre-defined SizesHole clearance violation:ErrorWarningIgnore RulesHole size out of range:ErrorWarningIgnoreViolation SeverityMicro via hole size out of DIP:DIP-14_W7.62mm_LongPads☐Library Description14-lead though-hole mounted DIP package☐KeywordsTHT DIP DIL PDIP 2.54mm 7.62mm 30

asking Idris to prove the hole $ r_{hs} $ using the command: p $ r_{hs} $ . Idris by default will show us the initial context. This looks as follows: *Foo> :p rhs Goal: { hole 0 }: (n : Nat) -> (m apply the intros tactic: --Foo.rhs> intros Other goals: { hole 2 } { hole 1 } { hole 0 } Assumptions: n : Nat m : Nat o : Nat Goal: { hole 3 }: plus n (plus m o) = plus (plus n m) o ### 2.3 Induction induction on to n: --Foo.rhs> induction n ------------------- Other goals: elim_SO { hole 2 } { hole 1 } { hole 0 } ------------------- Assumptions: n : Nat m : Nat o : Nat ------------------- Goal:

asking Idris to prove the hole $ r_{hs} $ using the command: p $ r_{hs} $ . Idris by default will show us the initial context. This looks as follows: *Foo> :p rhs Goal: { hole 0 }: (n : Nat) -> (m apply the intros tactic: --Foo.rhs> intros Other goals: { hole 2 } { hole 1 } { hole 0 } Assumptions: n : Nat m : Nat o : Nat Goal: { hole 3 }: plus n (plus m o) = plus (plus n m) o ### 2.3 Induction induction on to n: --Foo.rhs> induction n ------------------- Other goals: elim_SO { hole 2 } { hole 1 } { hole 0 } ------------------- Assumptions: n : Nat m : Nat o : Nat ------------------- Goal:

asking Idris to prove the hole $ r_{hs} $ using the command: p $ r_{hs} $ . Idris by default will show us the initial context. This looks as follows: *Foo> :p rhs Goal: { hole 0 }: (n : Nat) -> (m apply the intros tactic: --Foo.rhs> intros Other goals: { hole 2 } { hole 1 } { hole 0 } Assumptions: n : Nat m : Nat o : Nat Goal: { hole 3 }: plus n (plus m o) = plus (plus n m) o ### 2.3 Induction induction on to n: --Foo.rhs> induction n ------------------- Other goals: elim_SO { hole 2 } { hole 1 } { hole 0 } ------------------- Assumptions: n : Nat m : Nat o : Nat ------------------- Goal:

asking Idris to prove the hole $ r_{hs} $ using the command: p $ r_{hs} $ . Idris by default will show us the initial context. This looks as follows: *Foo> :p rhs Goal: { hole 0 }: (n : Nat) -> (m apply the intros tactic: --Foo.rhs> intros Other goals: { hole 2 } { hole 1 } { hole 0 } Assumptions: n : Nat m : Nat o : Nat Goal: { hole 3 }: plus n (plus m o) = plus (plus n m) o ### 2.3 Induction induction on to n: --Foo.rhs> induction n ------------------- Other goals: elim_SO { hole 2 } { hole 1 } { hole 0 } ------------------- Assumptions: n : Nat m : Nat o : Nat ------------------- Goal:

asking Idris to prove the hole $ r_{hs} $ using the command: p $ r_{hs} $ . Idris by default will show us the initial context. This looks as follows: *Foo> :p rhs Goal: { hole 0 }: (n : Nat) -> (m apply the intros tactic: --Foo.rhs> intros Other goals: { hole 2 } { hole 1 } { hole 0 } Assumptions: n : Nat m : Nat o : Nat Goal: { hole 3 }: plus n (plus m o) = plus (plus n m) o ### 2.3 Induction induction on to n: --Foo.rhs> induction n ------------------- Other goals: elim_SO { hole 2 } { hole 1 } { hole 0 } ------------------- Assumptions: n : Nat m : Nat o : Nat ------------------- Goal: