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| Description: Lemma for our Axiom of Infinity => standard Axiom of Infinity. See inf3 4600 for detailed description. |
| Ref | Expression |
|---|---|
| inf3lem.1 |
|
| inf3lem.2 |
|
| inf3lem.3 |
|
| inf3lem.4 |
|
| Ref | Expression |
|---|---|
| inf3lem1 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fveq2 3715 |
. . 3
| |
| 2 | suceq 3029 |
. . . 4
| |
| 3 | 2 | fveq2d 3719 |
. . 3
|
| 4 | 1, 3 | sseq12d 2086 |
. 2
|
| 5 | fveq2 3715 |
. . 3
| |
| 6 | suceq 3029 |
. . . 4
| |
| 7 | 6 | fveq2d 3719 |
. . 3
|
| 8 | 5, 7 | sseq12d 2086 |
. 2
|
| 9 | fveq2 3715 |
. . 3
| |
| 10 | suceq 3029 |
. . . 4
| |
| 11 | 10 | fveq2d 3719 |
. . 3
|
| 12 | 9, 11 | sseq12d 2086 |
. 2
|
| 13 | fveq2 3715 |
. . 3
| |
| 14 | suceq 3029 |
. . . 4
| |
| 15 | 14 | fveq2d 3719 |
. . 3
|
| 16 | 13, 15 | sseq12d 2086 |
. 2
|
| 17 | inf3lem.1 |
. . . 4
| |
| 18 | inf3lem.2 |
. . . 4
| |
| 19 | inf3lem.3 |
. . . 4
| |
| 20 | 17, 18, 19, 19 | inf3lemb 4590 |
. . 3
|
| 21 | 0ss 2297 |
. . 3
| |
| 22 | 20, 21 | eqsstr 2087 |
. 2
|
| 23 | visset 1809 |
. . . . . . . . . 10
| |
| 24 | 17, 18, 23, 23 | inf3lemc 4591 |
. . . . . . . . 9
|
| 25 | 24 | eleq2d 1538 |
. . . . . . . 8
|
| 26 | visset 1809 |
. . . . . . . . 9
| |
| 27 | fvex 3723 |
. . . . . . . . 9
| |
| 28 | 17, 18, 26, 27 | inf3lema 4589 |
. . . . . . . 8
|
| 29 | 25, 28 | syl6bb 535 |
. . . . . . 7
|
| 30 | peano2b 3142 |
. . . . . . . . . 10
| |
| 31 | 23 | sucex 3045 |
. . . . . . . . . . 11
|
| 32 | 17, 18, 31, 23 | inf3lemc 4591 |
. . . . . . . . . 10
|
| 33 | 30, 32 | sylbi 199 |
. . . . . . . . 9
|
| 34 | 33 | eleq2d 1538 |
. . . . . . . 8
|
| 35 | fvex 3723 |
. . . . . . . . 9
| |
| 36 | 17, 18, 26, 35 | inf3lema 4589 |
. . . . . . . 8
|
| 37 | 34, 36 | syl6bb 535 |
. . . . . . 7
|
| 38 | 29, 37 | imbi12d 625 |
. . . . . 6
|
| 39 | sstr2 2067 |
. . . . . . . 8
| |
| 40 | 39 | com12 11 |
. . . . . . 7
|
| 41 | 40 | anim2d 560 |
. . . . . 6
|
| 42 | 38, 41 | syl5bir 210 |
. . . . 5
|
| 43 | 42 | imp 350 |
. . . 4
|
| 44 | 43 | ssrdv 2066 |
. . 3
|
| 45 | 44 | ex 373 |
. 2
|
| 46 | 4, 8, 12, 16, 22, 45 | finds 3151 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: inf3lem4 4596 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 960 ax-gen 961 ax-8 962 ax-9 963 ax-10 964 ax-11 965 ax-12 966 ax-13 967 ax-14 968 ax-17 969 ax-4 971 ax-5o 973 ax-6o 976 ax-9o 1121 ax-10o 1138 ax-16 1208 ax-11o 1216 ax-ext 1457 ax-rep 2688 ax-sep 2698 ax-nul 2705 ax-pow 2737 ax-pr 2774 ax-un 2861 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-3or 775 df-3an 776 df-ex 979 df-sb 1170 df-eu 1380 df-mo 1381 df-clab 1462 df-cleq 1467 df-clel 1470 df-ne 1584 df-ral 1646 df-rex 1647 df-rab 1649 df-v 1808 df-sbc 1938 df-dif 2045 df-un 2046 df-in 2047 df-ss 2049 df-nul 2277 df-if 2358 df-pw 2398 df-sn 2408 df-pr 2409 df-tp 2411 df-op 2412 df-uni 2499 df-iun 2563 df-br 2615 df-opab 2662 df-tr 2676 df-eprel 2827 df-id 2830 df-po 2835 df-so 2845 df-fr 2912 df-we 2929 df-ord 2946 df-on 2947 df-lim 2948 df-suc 2949 df-om 3127 df-xp 3179 df-rel 3180 df-cnv 3181 df-co 3182 df-dm 3183 df-rn 3184 df-res 3185 df-ima 3186 df-fun 3187 df-fn 3188 df-fv 3193 df-rdg 3923 |