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Mirrors > Home > ILE Home > Th. List > cnss2 | Unicode version |
Description: If the topology is finer than , then there are fewer continuous functions into than into from some other space. (Contributed by Mario Carneiro, 19-Mar-2015.) (Revised by Mario Carneiro, 21-Aug-2015.) |
Ref | Expression |
---|---|
cnss2.1 |
Ref | Expression |
---|---|
cnss2 | TopOn |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2139 | . . . . . 6 | |
2 | cnss2.1 | . . . . . 6 | |
3 | 1, 2 | cnf 12373 | . . . . 5 |
4 | 3 | adantl 275 | . . . 4 TopOn |
5 | simplr 519 | . . . . 5 TopOn | |
6 | cnima 12389 | . . . . . . 7 | |
7 | 6 | ralrimiva 2505 | . . . . . 6 |
8 | 7 | adantl 275 | . . . . 5 TopOn |
9 | ssralv 3161 | . . . . 5 | |
10 | 5, 8, 9 | sylc 62 | . . . 4 TopOn |
11 | cntop1 12370 | . . . . . . 7 | |
12 | 11 | adantl 275 | . . . . . 6 TopOn |
13 | 1 | toptopon 12185 | . . . . . 6 TopOn |
14 | 12, 13 | sylib 121 | . . . . 5 TopOn TopOn |
15 | simpll 518 | . . . . 5 TopOn TopOn | |
16 | iscn 12366 | . . . . 5 TopOn TopOn | |
17 | 14, 15, 16 | syl2anc 408 | . . . 4 TopOn |
18 | 4, 10, 17 | mpbir2and 928 | . . 3 TopOn |
19 | 18 | ex 114 | . 2 TopOn |
20 | 19 | ssrdv 3103 | 1 TopOn |
Colors of variables: wff set class |
Syntax hints: wi 4 wa 103 wb 104 wceq 1331 wcel 1480 wral 2416 wss 3071 cuni 3736 ccnv 4538 cima 4542 wf 5119 cfv 5123 (class class class)co 5774 ctop 12164 TopOnctopon 12177 ccn 12354 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-ral 2421 df-rex 2422 df-rab 2425 df-v 2688 df-sbc 2910 df-csb 3004 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-iun 3815 df-br 3930 df-opab 3990 df-mpt 3991 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-fv 5131 df-ov 5777 df-oprab 5778 df-mpo 5779 df-1st 6038 df-2nd 6039 df-map 6544 df-top 12165 df-topon 12178 df-cn 12357 |
This theorem is referenced by: (None) |
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