The belief that Christ is sacramentally but not physically present in the consecrated bread and wine, that all effective signs consist of two parts: "signifier" and "signified" in the eucharist the signifier is the substance of the bread and wine, whilst the signified is the substance of Christ's body and blood
That two kinds of presence, local and personal. Pupils may be "locally present" in a class but if their thoughts are far away then they are not "Personally present", in the eucharist Jesus is personally, but not locally present
The belief that when the bread and wine are consecrated their purpose and finality is changed, but not their substance - they serve the new function - which is to stir up faith in the mystery of Christ's redemptive love
The belief that the body and blood of Christ co-exist with the consecrated bread and wine of the eucharist - they remain bread and wine but Christ is spiritually present "with them, in them and under them"
The belief that Christ's unique power (LT "Virtus") is present in the consecrated bread and wine, but that this power is received only by the predestined elect