Comments (2)
Yes. This works, for example:
#lang racket
(require redex/reduction-semantics)
(define-language L
(n ::= Z (S n)))
(define-judgment-form L
#:mode (odd I)
[(even n)
----------
(odd (S n))])
(define-judgment-form L
#:mode (even I)
[--------
(even Z)]
[(odd n)
------------
(even (S n))])
(test-judgment-holds (even Z))
(test-judgment-holds (odd (S Z)))
(test-judgment-holds (even (S (S Z))))
(test-equal (judgment-holds (odd Z)) #f)
(test-equal (judgment-holds (even (S Z))) #f)
(test-results)
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Thank you!
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Related Issues (20)
- Feature request: tag-with-names for apply-reduction-relation* HOT 2
- test-->>∃ #:steps n passes test if n > than the number of actual reduction steps for a term. HOT 4
- `traces` doesn't draw arrows after "fix layout" HOT 5
- `stepper` doesn't display whole term... unless I *narrow* its box?
- Feature Request: `stepper` with judgment-form use rule names
- Feature request: adjust font for `stepper` HOT 3
- Redex rejects literals at different ellipsis depths in binding form declarations HOT 1
- Generating random expressions sometimes results in an infinite loop
- where/error failures give no information about source of error HOT 6
- where/error failures don't tell you what failed to match
- using judgment-holds within define-relation HOT 1
- Redex's reduction graph windows sneakily hide part of term reductions HOT 1
- where/error doesn't report errors sometimes HOT 8
- define-metafunction does not check type signature on LHS HOT 3
- Docs missing a word I can't fill in. HOT 1
- `derivation/ps` always causes an error by calling a non-existent method HOT 1
- Default rendering font changed between Racket v8.8 and v8.9? HOT 4
- Redex PDF output contains a wrong font, while Racket REPL renders the correct font HOT 2
- Reduce space between rendered rules of a judgement form HOT 3
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