Working on issue #55 (IronScheme fails test suite): The most recent IronScheme version fixes a bug regarding equal-hash in case of keys that are circular objects, like AST nodes (leppie/IronScheme@07f20bde32a49e4578119baa1cc781ca1c3a1b87). For this reason the composed Petri nets example is now working with IronScheme.
Working on issue #55 (IronScheme fails test suite): The most recent IronScheme version fixes a bug regarding equal-hash in case of keys that are circular objects, like AST nodes (leppie/IronScheme@07f20bde32a49e4578119baa1cc781ca1c3a1b87). For this reason the composed Petri nets example is now working with IronScheme.

christoff-buerger/racr,christoff-buerger/racr,christoff-buerger/racr