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Theorem base for Specification either

This is a listing of all goals defined over the current specification. Axioms are marked yellow, proved theorems green and unproved theorems blue. Click on individual names to get more information on the proof.

Name: Sequent: Type:
optl-left ⊦ Left(a).optl = Some(a) An Axiom
sel-Left-dotgetL ⊦ Left(a).getL = a An Axiom
optr-left ⊦ Left(a).optr = None An Axiom
mapl-left ⊦ Left(a).mapl(fac) = Left(fac(a)) An Axiom
elim-Right ⊦ either.isRight → (getR = either.getR ↔ either = Right(getR)) An Axiom
test-dotisRight-Left ⊦ ¬ Left(a).isRight An Axiom
disj-Left-Right ⊦ Left(a) ≠ Right(b) An Axiom
mapl-right ⊦ Right(b).mapl(fac) = Right(b) An Axiom
inj-Left ⊦ Left(a) = Left(a0) ↔ a = a0 An Axiom
fold-left ⊦ Left(a).fold(fac, fbc) = fac(a) An Axiom
fold-right ⊦ Right(b).fold(fac, fbc) = fbc(b) An Axiom
genEither[A, B] freely generated by Left, Right; An Axiom
getLOrElse-right ⊦ Right(b).getLOrElse(a0) = a0 An Axiom
mapr-right ⊦ Right(b).mapr(fbc) = Right(fbc(b)) An Axiom
map-right ⊦ Right(b).map(fac, fbd) = Right(fbd(b)) An Axiom
optl-right ⊦ Right(b).optl = None An Axiom
sel-Right-dotgetR ⊦ Right(b).getR = b An Axiom
getROrElse-left ⊦ Left(a).getROrElse(b0) = b0 An Axiom
case-Either ⊦ either = Left(either.getL) ∨ either = Right(either.getR) An Axiom
ex-dotisRight ⊦ either.isRight ↔ (∃ b. either = Right(b)) An Axiom
getLOrElse-left ⊦ Left(a).getLOrElse(a0) = a An Axiom
getROrElse-right ⊦ Right(b).getROrElse(b0) = b An Axiom
map-left ⊦ Left(a).map(fac, fbd) = Left(fac(a)) An Axiom
inj-Right ⊦ Right(b) = Right(b0) ↔ b = b0 An Axiom
test-dotisRight-Right ⊦ Right(b).isRight An Axiom
optr-right ⊦ Right(b).optr = Some(b) An Axiom
mapr-left ⊦ Left(a).mapr(fbc) = Left(a) An Axiom