#FIG 3.2 Produced by xfig version 3.2.5c Landscape Center Inches Letter 100.00 Single -2 1200 2 5 1 0 1 0 7 50 -1 -1 0.000 0 1 1 0 14032.500 7222.500 4725 3825 4425 4800 4200 6000 1 1 1.00 60.00 120.00 5 1 0 1 0 7 50 -1 -1 0.000 0 0 0 1 3600.000 8925.000 3600 9075 3450 8925 3600 8775 1 1 1.00 60.00 120.00 5 1 0 1 0 7 50 -1 -1 0.000 0 0 0 1 3600.000 8625.000 3600 8775 3450 8625 3600 8475 1 1 1.00 60.00 120.00 5 1 0 1 0 7 50 -1 -1 0.000 0 0 1 1 3600.000 8325.000 3600 8475 3450 8325 3600 8175 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 5 1 0 1 0 7 50 -1 -1 0.000 0 0 1 1 3600.000 8625.000 3600 8775 3450 8625 3600 8475 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 5 1 0 1 0 7 50 -1 -1 0.000 0 0 1 1 3600.000 8925.000 3600 9075 3450 8925 3600 8775 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 5 1 0 1 0 7 50 -1 -1 0.000 0 0 1 1 3600.000 9225.000 3600 9375 3450 9225 3600 9075 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 5 1 0 1 0 7 50 -1 -1 0.000 0 1 1 0 6309.515 5767.724 4200 3825 3450 5550 3825 7200 1 1 1.00 60.00 120.00 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 7725 3900 7200 6000 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 7200 6225 7200 7050 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 1 2 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 5550 5625 5550 6000 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 1 2 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 3375 3225 3375 3600 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3373 1950 3376 2250 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 1 2 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 3375 2625 3375 3000 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2 2175 3600 3750 3600 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3075 2475 2475 2475 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3374 1125 3377 1425 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3075 975 1575 975 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 3075 1725 2025 1725 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 4 8025 5925 8250 5925 9000 4950 9150 4950 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 8625 5400 8250 3900 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 7050 7350 4575 7950 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 4200 7500 4200 7950 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 1 2 1 1 1.00 60.00 120.00 1 1 1.00 60.00 120.00 1139 2771 1364 3521 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2 4425 4875 7350 3825 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 1048 1125 1051 1425 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 1049 1950 1052 2250 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 1500 3900 2175 6000 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 0 0 2 4575 6000 6450 6000 2 1 0 1 0 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 4714 6255 7039 7080 2 1 0 1 -1 7 50 -1 -1 0.000 0 0 -1 1 0 2 1 1 1.00 60.00 120.00 4200 6225 4200 7200 3 0 0 1 0 7 50 -1 -1 0.000 0 0 0 4 6450 7050 4050 6675 3750 6825 3750 7050 0.000 1.000 1.000 0.000 4 0 -1 50 -1 2 12 0.0000 2 135 1440 3675 6225 Excluded-middle\001 4 0 -1 50 -1 0 12 0.0000 2 180 1065 450 1050 Operator iota\001 4 0 -1 50 -1 0 12 0.0000 2 180 2850 3150 2400 Constructive indefinite description\001 4 0 -1 50 -1 0 12 0.0000 2 180 1965 3150 2625 in propositional context\001 4 0 -1 50 -1 0 12 0.0000 2 135 2235 450 2400 Constructive definite descr.\001 4 0 -1 50 -1 0 12 0.0000 2 180 1965 450 2625 in propositional context\001 4 0 -1 50 -1 0 12 0.0000 2 135 1995 3825 3750 Relational choice axiom\001 4 0 -1 50 -1 0 12 0.0000 2 180 1965 6900 3750 Predicate extensionality\001 4 0 -1 50 -1 0 12 0.0000 2 180 1710 1275 5025 (if Set impredicative)\001 4 0 -1 50 -1 0 12 0.0000 2 165 1065 3750 5250 (Diaconescu)\001 4 0 -1 50 -1 0 12 0.0000 2 180 2070 4950 5550 Propositional degeneracy\001 4 0 -1 50 -1 0 12 0.0000 2 180 2310 6150 6150 Propositional extensionality\001 4 0 -1 50 -1 0 12 0.0000 2 180 2325 4950 6525 (needs Prop-impredicativity)\001 4 0 -1 50 -1 0 12 0.0000 2 165 720 6000 6750 (Berardi)\001 4 0 -1 50 -1 0 12 0.0000 2 135 1725 1575 6225 Not excluded-middle\001 4 0 -1 50 -1 0 12 0.0000 2 180 2730 3375 7425 Decidability of equality on any A\001 4 0 -1 50 -1 0 12 0.0000 2 135 1170 3600 8175 Axiom K on A\001 4 0 -1 50 -1 0 12 0.0000 2 180 4035 3600 8475 Uniqueness of reflexivity proofs for equality on A\001 4 0 -1 50 -1 0 12 0.0000 2 180 2865 3600 8775 Uniqueness of equality proofs on A\001 4 0 -1 50 -1 0 12 0.0000 2 180 5220 3600 9375 Invariance by substitution of reflexivity proofs for equality on A\001 4 0 -1 50 -1 2 12 0.0000 2 180 2145 9000 5175 Functional extensionality\001 4 0 -1 50 -1 2 12 0.0000 2 180 3585 3600 9075 Injectivity of equality on Sigma-types on A\001 4 0 -1 50 -1 2 12 0.0000 2 135 1515 6450 7275 Proof-irrelevance\001 4 0 -1 50 -1 2 12 0.0000 2 180 1440 3150 1050 Operator epsilon\001 4 0 -1 50 -1 2 12 0.0000 2 135 1080 3150 1650 Constructive\001 4 0 -1 50 -1 2 12 0.0000 2 180 1785 3150 1875 indefinite description\001 4 0 -1 50 -1 2 12 0.0000 2 135 2085 3150 3150 Functional choice axiom\001 4 0 -1 50 -1 2 12 0.0000 2 135 1080 450 1650 Constructive\001 4 0 -1 50 -1 2 12 0.0000 2 180 1620 450 1875 definite description\001 4 0 -1 50 -1 2 12 0.0000 2 180 1980 450 3750 Axiom of unique choice\001